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<div class="subTitle">org.apache.sysds.api.mlcontext</div>
<h2 title="Class MLContextConversionUtil" class="title">Class MLContextConversionUtil</h2>
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<pre>public class <span class="typeNameLabel">MLContextConversionUtil</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Utility class containing methods to perform data conversions.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#MLContextConversionUtil--">MLContextConversionUtil</a></span>()</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#binaryBlocksToFrameObject-org.apache.spark.api.java.JavaPairRDD-">binaryBlocksToFrameObject</a></span>(org.apache.spark.api.java.JavaPairRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&gt;&nbsp;binaryBlocks)</code>
<div class="block">Convert a <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code> to a <code>FrameObject</code>.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#binaryBlocksToFrameObject-org.apache.spark.api.java.JavaPairRDD-org.apache.sysds.api.mlcontext.FrameMetadata-">binaryBlocksToFrameObject</a></span>(org.apache.spark.api.java.JavaPairRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&gt;&nbsp;binaryBlocks,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">Convert a <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code> to a <code>FrameObject</code>.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#binaryBlocksToMatrixBlock-org.apache.spark.api.java.JavaPairRDD-org.apache.sysds.api.mlcontext.MatrixMetadata-">binaryBlocksToMatrixBlock</a></span>(org.apache.spark.api.java.JavaPairRDD&lt;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixIndexes.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixIndexes</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;&nbsp;binaryBlocks,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> to a
<code>MatrixBlock</code></div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#binaryBlocksToMatrixObject-org.apache.spark.api.java.JavaPairRDD-">binaryBlocksToMatrixObject</a></span>(org.apache.spark.api.java.JavaPairRDD&lt;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixIndexes.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixIndexes</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;&nbsp;binaryBlocks)</code>
<div class="block">Convert a <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> to a
<code>MatrixObject</code>.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#binaryBlocksToMatrixObject-org.apache.spark.api.java.JavaPairRDD-org.apache.sysds.api.mlcontext.MatrixMetadata-">binaryBlocksToMatrixObject</a></span>(org.apache.spark.api.java.JavaPairRDD&lt;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixIndexes.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixIndexes</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;&nbsp;binaryBlocks,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> to a
<code>MatrixObject</code>.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaPairRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#dataFrameToFrameBinaryBlocks-org.apache.spark.sql.Dataset-org.apache.sysds.api.mlcontext.FrameMetadata-">dataFrameToFrameBinaryBlocks</a></span>(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">Convert a <code>DataFrame</code> to a <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code>
binary-block frame.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#dataFrameToFrameObject-org.apache.spark.sql.Dataset-">dataFrameToFrameObject</a></span>(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame)</code>
<div class="block">Convert a <code>DataFrame</code> to a <code>FrameObject</code>.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#dataFrameToFrameObject-org.apache.spark.sql.Dataset-org.apache.sysds.api.mlcontext.FrameMetadata-">dataFrameToFrameObject</a></span>(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">Convert a <code>DataFrame</code> to a <code>FrameObject</code>.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaPairRDD&lt;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixIndexes.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixIndexes</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#dataFrameToMatrixBinaryBlocks-org.apache.spark.sql.Dataset-">dataFrameToMatrixBinaryBlocks</a></span>(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame)</code>
<div class="block">Convert a <code>DataFrame</code> to a
<code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> binary-block matrix.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaPairRDD&lt;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixIndexes.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixIndexes</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#dataFrameToMatrixBinaryBlocks-org.apache.spark.sql.Dataset-org.apache.sysds.api.mlcontext.MatrixMetadata-">dataFrameToMatrixBinaryBlocks</a></span>(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a <code>DataFrame</code> to a
<code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> binary-block matrix.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#dataFrameToMatrixObject-org.apache.spark.sql.Dataset-">dataFrameToMatrixObject</a></span>(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame)</code>
<div class="block">Convert a <code>DataFrame</code> to a <code>MatrixObject</code>.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#dataFrameToMatrixObject-org.apache.spark.sql.Dataset-org.apache.sysds.api.mlcontext.MatrixMetadata-">dataFrameToMatrixObject</a></span>(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a <code>DataFrame</code> to a <code>MatrixObject</code>.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#determineFrameFormatIfNeeded-org.apache.spark.sql.Dataset-org.apache.sysds.api.mlcontext.FrameMetadata-">determineFrameFormatIfNeeded</a></span>(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">If the FrameFormat of the DataFrame has not been explicitly specified,
attempt to determine the proper FrameFormat.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#determineMatrixFormatIfNeeded-org.apache.spark.sql.Dataset-org.apache.sysds.api.mlcontext.MatrixMetadata-">determineMatrixFormatIfNeeded</a></span>(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">If the MatrixFormat of the DataFrame has not been explicitly specified,
attempt to determine the proper MatrixFormat.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#doubleMatrixToMatrixObject-java.lang.String-double:A:A-">doubleMatrixToMatrixObject</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
double[][]&nbsp;doubleMatrix)</code>
<div class="block">Convert a two-dimensional double array to a <code>MatrixObject</code>.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#doubleMatrixToMatrixObject-java.lang.String-double:A:A-org.apache.sysds.api.mlcontext.MatrixMetadata-">doubleMatrixToMatrixObject</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
double[][]&nbsp;doubleMatrix,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a two-dimensional double array to a <code>MatrixObject</code>.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameBlockToFrameObject-java.lang.String-org.apache.sysds.runtime.matrix.data.FrameBlock-org.apache.sysds.api.mlcontext.FrameMetadata-">frameBlockToFrameObject</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
<a href="../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&nbsp;frameBlock,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">Convert a <code>FrameBlock</code> to a <code>FrameObject</code>.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameObjectTo2DStringArray-org.apache.sysds.runtime.controlprogram.caching.FrameObject-">frameObjectTo2DStringArray</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject)</code>
<div class="block">Convert a <code>FrameObject</code> to a two-dimensional string array.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaPairRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameObjectToBinaryBlocks-org.apache.sysds.runtime.controlprogram.caching.FrameObject-org.apache.sysds.runtime.controlprogram.context.SparkExecutionContext-">frameObjectToBinaryBlocks</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject,
<a href="../../../../../org/apache/sysds/runtime/controlprogram/context/SparkExecutionContext.html" title="class in org.apache.sysds.runtime.controlprogram.context">SparkExecutionContext</a>&nbsp;sparkExecutionContext)</code>
<div class="block">Convert a <code>FrameObject</code> to a <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code>.</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>static org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameObjectToDataFrame-org.apache.sysds.runtime.controlprogram.caching.FrameObject-org.apache.sysds.runtime.controlprogram.context.SparkExecutionContext-">frameObjectToDataFrame</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject,
<a href="../../../../../org/apache/sysds/runtime/controlprogram/context/SparkExecutionContext.html" title="class in org.apache.sysds.runtime.controlprogram.context">SparkExecutionContext</a>&nbsp;sparkExecutionContext)</code>
<div class="block">Convert a <code>FrameObject</code> to a <code>DataFrame</code>.</div>
</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameObjectToJavaRDDStringCSV-org.apache.sysds.runtime.controlprogram.caching.FrameObject-java.lang.String-">frameObjectToJavaRDDStringCSV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;delimiter)</code>
<div class="block">Convert a <code>FrameObject</code> to a <code>JavaRDD&lt;String&gt;</code> in CSV format.</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameObjectToJavaRDDStringIJV-org.apache.sysds.runtime.controlprogram.caching.FrameObject-">frameObjectToJavaRDDStringIJV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject)</code>
<div class="block">Convert a <code>FrameObject</code> to a <code>JavaRDD&lt;String&gt;</code> in IJV format.</div>
</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameObjectToListStringCSV-org.apache.sysds.runtime.controlprogram.caching.FrameObject-java.lang.String-">frameObjectToListStringCSV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;delimiter)</code>
<div class="block">Convert a <code>FrameObject</code> to a <code>List&lt;String&gt;</code> in CSV format.</div>
</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameObjectToListStringIJV-org.apache.sysds.runtime.controlprogram.caching.FrameObject-">frameObjectToListStringIJV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject)</code>
<div class="block">Convert a <code>FrameObject</code> to a <code>List&lt;String&gt;</code> in IJV format.</div>
</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>static org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameObjectToRDDStringCSV-org.apache.sysds.runtime.controlprogram.caching.FrameObject-java.lang.String-">frameObjectToRDDStringCSV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;delimiter)</code>
<div class="block">Convert a <code>FrameObject</code> to a <code>RDD&lt;String&gt;</code> in CSV format.</div>
</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>static org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#frameObjectToRDDStringIJV-org.apache.sysds.runtime.controlprogram.caching.FrameObject-">frameObjectToRDDStringIJV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject)</code>
<div class="block">Convert a <code>FrameObject</code> to a <code>RDD&lt;String&gt;</code> in IJV format.</div>
</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#isDataFrameWithIDColumn-org.apache.sysds.api.mlcontext.FrameMetadata-">isDataFrameWithIDColumn</a></span>(<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">Return whether or not the DataFrame has an ID column.</div>
</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#isDataFrameWithIDColumn-org.apache.sysds.api.mlcontext.MatrixMetadata-">isDataFrameWithIDColumn</a></span>(<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Return whether or not the DataFrame has an ID column.</div>
</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#isVectorBasedDataFrame-org.apache.sysds.api.mlcontext.MatrixMetadata-">isVectorBasedDataFrame</a></span>(<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Return whether or not the DataFrame is vector-based.</div>
</td>
</tr>
<tr id="i29" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#javaRDDStringCSVToFrameObject-org.apache.spark.api.java.JavaRDD-">javaRDDStringCSVToFrameObject</a></span>(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD)</code>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in CSV format to a <code>FrameObject</code></div>
</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#javaRDDStringCSVToFrameObject-org.apache.spark.api.java.JavaRDD-org.apache.sysds.api.mlcontext.FrameMetadata-">javaRDDStringCSVToFrameObject</a></span>(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in CSV format to a <code>FrameObject</code></div>
</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#javaRDDStringCSVToMatrixObject-org.apache.spark.api.java.JavaRDD-">javaRDDStringCSVToMatrixObject</a></span>(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD)</code>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in CSV format to a <code>MatrixObject</code></div>
</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#javaRDDStringCSVToMatrixObject-org.apache.spark.api.java.JavaRDD-org.apache.sysds.api.mlcontext.MatrixMetadata-">javaRDDStringCSVToMatrixObject</a></span>(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in CSV format to a <code>MatrixObject</code></div>
</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#javaRDDStringIJVToFrameObject-org.apache.spark.api.java.JavaRDD-org.apache.sysds.api.mlcontext.FrameMetadata-">javaRDDStringIJVToFrameObject</a></span>(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in IJV format to a <code>FrameObject</code>
.</div>
</td>
</tr>
<tr id="i34" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#javaRDDStringIJVToMatrixObject-org.apache.spark.api.java.JavaRDD-org.apache.sysds.api.mlcontext.MatrixMetadata-">javaRDDStringIJVToMatrixObject</a></span>(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in IJV format to a <code>MatrixObject</code>
.</div>
</td>
</tr>
<tr id="i35" class="rowColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaSparkContext</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#jsc--">jsc</a></span>()</code>
<div class="block">Obtain JavaSparkContext from MLContextProxy.</div>
</td>
</tr>
<tr id="i36" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixBlockToMatrixObject-java.lang.String-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.api.mlcontext.MatrixMetadata-">matrixBlockToMatrixObject</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;matrixBlock,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a <code>MatrixBlock</code> to a <code>MatrixObject</code>.</div>
</td>
</tr>
<tr id="i37" class="rowColor">
<td class="colFirst"><code>static double[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixObjectTo2DDoubleArray-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-">matrixObjectTo2DDoubleArray</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixObject)</code>
<div class="block">Convert a <code>MatrixObject</code> to a two-dimensional double array.</div>
</td>
</tr>
<tr id="i38" class="altColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaPairRDD&lt;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixIndexes.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixIndexes</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixObjectToBinaryBlocks-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-org.apache.sysds.runtime.controlprogram.context.SparkExecutionContext-">matrixObjectToBinaryBlocks</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixObject,
<a href="../../../../../org/apache/sysds/runtime/controlprogram/context/SparkExecutionContext.html" title="class in org.apache.sysds.runtime.controlprogram.context">SparkExecutionContext</a>&nbsp;sparkExecutionContext)</code>
<div class="block">Convert a <code>MatrixObject</code> to a
<code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code>.</div>
</td>
</tr>
<tr id="i39" class="rowColor">
<td class="colFirst"><code>static org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixObjectToDataFrame-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-org.apache.sysds.runtime.controlprogram.context.SparkExecutionContext-boolean-">matrixObjectToDataFrame</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixObject,
<a href="../../../../../org/apache/sysds/runtime/controlprogram/context/SparkExecutionContext.html" title="class in org.apache.sysds.runtime.controlprogram.context">SparkExecutionContext</a>&nbsp;sparkExecutionContext,
boolean&nbsp;isVectorDF)</code>
<div class="block">Convert a <code>MatrixObject</code> to a <code>DataFrame</code>.</div>
</td>
</tr>
<tr id="i40" class="altColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixObjectToJavaRDDStringCSV-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-">matrixObjectToJavaRDDStringCSV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixObject)</code>
<div class="block">Convert a <code>MatrixObject</code> to a <code>JavaRDD&lt;String&gt;</code> in CSV
format.</div>
</td>
</tr>
<tr id="i41" class="rowColor">
<td class="colFirst"><code>static org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixObjectToJavaRDDStringIJV-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-">matrixObjectToJavaRDDStringIJV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixObject)</code>
<div class="block">Convert a <code>MatrixObject</code> to a <code>JavaRDD&lt;String&gt;</code> in IJV
format.</div>
</td>
</tr>
<tr id="i42" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixObjectToListStringCSV-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-">matrixObjectToListStringCSV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixObject)</code>
<div class="block">Convert a <code>MatrixObject</code> to a <code>List&lt;String&gt;</code> in CSV format.</div>
</td>
</tr>
<tr id="i43" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixObjectToListStringIJV-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-">matrixObjectToListStringIJV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixObject)</code>
<div class="block">Convert a <code>MatrixObject</code> to a <code>List&lt;String&gt;</code> in IJV format.</div>
</td>
</tr>
<tr id="i44" class="altColor">
<td class="colFirst"><code>static org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixObjectToRDDStringCSV-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-">matrixObjectToRDDStringCSV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixObject)</code>
<div class="block">Convert a <code>MatrixObject</code> to a <code>RDD&lt;String&gt;</code> in CSV format.</div>
</td>
</tr>
<tr id="i45" class="rowColor">
<td class="colFirst"><code>static org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#matrixObjectToRDDStringIJV-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-">matrixObjectToRDDStringIJV</a></span>(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixObject)</code>
<div class="block">Convert a <code>MatrixObject</code> to a <code>RDD&lt;String&gt;</code> in IJV format.</div>
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<tr id="i46" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#rddStringCSVToFrameObject-org.apache.spark.rdd.RDD-">rddStringCSVToFrameObject</a></span>(org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;rdd)</code>
<div class="block">Convert a <code>RDD&lt;String&gt;</code> in CSV format to a <code>FrameObject</code></div>
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<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
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<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">Convert a <code>RDD&lt;String&gt;</code> in CSV format to a <code>FrameObject</code></div>
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<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#rddStringCSVToMatrixObject-org.apache.spark.rdd.RDD-">rddStringCSVToMatrixObject</a></span>(org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;rdd)</code>
<div class="block">Convert a <code>RDD&lt;String&gt;</code> in CSV format to a <code>MatrixObject</code></div>
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<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#rddStringCSVToMatrixObject-org.apache.spark.rdd.RDD-org.apache.sysds.api.mlcontext.MatrixMetadata-">rddStringCSVToMatrixObject</a></span>(org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;rdd,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a <code>RDD&lt;String&gt;</code> in CSV format to a <code>MatrixObject</code></div>
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<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#rddStringIJVToFrameObject-org.apache.spark.rdd.RDD-org.apache.sysds.api.mlcontext.FrameMetadata-">rddStringIJVToFrameObject</a></span>(org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;rdd,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</code>
<div class="block">Convert a <code>RDD&lt;String&gt;</code> in IJV format to a <code>FrameObject</code>.</div>
</td>
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<tr id="i51" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#rddStringIJVToMatrixObject-org.apache.spark.rdd.RDD-org.apache.sysds.api.mlcontext.MatrixMetadata-">rddStringIJVToMatrixObject</a></span>(org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;rdd,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a <code>RDD&lt;String&gt;</code> in IJV format to a <code>MatrixObject</code>.</div>
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<td class="colFirst"><code>static org.apache.spark.SparkContext</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#sc--">sc</a></span>()</code>
<div class="block">Obtain SparkContext from MLContextProxy.</div>
</td>
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<td class="colFirst"><code>static org.apache.spark.sql.SparkSession</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#spark--">spark</a></span>()</code>
<div class="block">Obtain SparkSession from MLContextProxy.</div>
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<td class="colFirst"><code>static <a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/api/mlcontext/MLContextConversionUtil.html#urlToMatrixObject-java.net.URL-org.apache.sysds.api.mlcontext.MatrixMetadata-">urlToMatrixObject</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a>&nbsp;url,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</code>
<div class="block">Convert a matrix at a URL to a <code>MatrixObject</code>.</div>
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<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;doubleMatrixToMatrixObject(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
double[][]&nbsp;doubleMatrix)</pre>
<div class="block">Convert a two-dimensional double array to a <code>MatrixObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>variableName</code> - name of the variable associated with the matrix</dd>
<dd><code>doubleMatrix</code> - matrix of double values</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the two-dimensional double matrix converted to a
<code>MatrixObject</code></dd>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;doubleMatrixToMatrixObject(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
double[][]&nbsp;doubleMatrix,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">Convert a two-dimensional double array to a <code>MatrixObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>variableName</code> - name of the variable associated with the matrix</dd>
<dd><code>doubleMatrix</code> - matrix of double values</dd>
<dd><code>matrixMetadata</code> - the matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the two-dimensional double matrix converted to a
<code>MatrixObject</code></dd>
</dl>
</li>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;urlToMatrixObject(<a href="https://docs.oracle.com/javase/8/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a>&nbsp;url,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">Convert a matrix at a URL to a <code>MatrixObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>url</code> - the URL to a matrix (in CSV or IJV format)</dd>
<dd><code>matrixMetadata</code> - the matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the matrix at a URL converted to a <code>MatrixObject</code></dd>
</dl>
</li>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;matrixBlockToMatrixObject(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;matrixBlock,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">Convert a <code>MatrixBlock</code> to a <code>MatrixObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>variableName</code> - name of the variable associated with the matrix</dd>
<dd><code>matrixBlock</code> - matrix as a MatrixBlock</dd>
<dd><code>matrixMetadata</code> - the matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>MatrixBlock</code> converted to a <code>MatrixObject</code></dd>
</dl>
</li>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameBlockToFrameObject(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
<a href="../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&nbsp;frameBlock,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</pre>
<div class="block">Convert a <code>FrameBlock</code> to a <code>FrameObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>variableName</code> - name of the variable associated with the frame</dd>
<dd><code>frameBlock</code> - frame as a FrameBlock</dd>
<dd><code>frameMetadata</code> - the frame metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>FrameBlock</code> converted to a <code>FrameObject</code></dd>
</dl>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;binaryBlocksToMatrixObject(org.apache.spark.api.java.JavaPairRDD&lt;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixIndexes.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixIndexes</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;&nbsp;binaryBlocks)</pre>
<div class="block">Convert a <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> to a
<code>MatrixObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>binaryBlocks</code> - <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> representation
of a binary-block matrix</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> matrix
converted to a <code>MatrixObject</code></dd>
</dl>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;binaryBlocksToMatrixObject(org.apache.spark.api.java.JavaPairRDD&lt;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixIndexes.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixIndexes</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;&nbsp;binaryBlocks,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">Convert a <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> to a
<code>MatrixObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>binaryBlocks</code> - <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> representation
of a binary-block matrix</dd>
<dd><code>matrixMetadata</code> - the matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> matrix
converted to a <code>MatrixObject</code></dd>
</dl>
</li>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;binaryBlocksToMatrixBlock(org.apache.spark.api.java.JavaPairRDD&lt;<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixIndexes.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixIndexes</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;&nbsp;binaryBlocks,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">Convert a <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> to a
<code>MatrixBlock</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>binaryBlocks</code> - <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> representation
of a binary-block matrix</dd>
<dd><code>matrixMetadata</code> - the matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> matrix
converted to a <code>MatrixBlock</code></dd>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;binaryBlocksToFrameObject(org.apache.spark.api.java.JavaPairRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&gt;&nbsp;binaryBlocks)</pre>
<div class="block">Convert a <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code> to a <code>FrameObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>binaryBlocks</code> - <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code> representation of a
binary-block frame</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code> frame converted to a
<code>FrameObject</code></dd>
</dl>
</li>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;binaryBlocksToFrameObject(org.apache.spark.api.java.JavaPairRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&gt;&nbsp;binaryBlocks,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</pre>
<div class="block">Convert a <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code> to a <code>FrameObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>binaryBlocks</code> - <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code> representation of a
binary-block frame</dd>
<dd><code>frameMetadata</code> - the frame metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code> frame converted to a
<code>FrameObject</code></dd>
</dl>
</li>
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<div class="block">Convert a <code>DataFrame</code> to a <code>MatrixObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataFrame</code> - the Spark <code>DataFrame</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>DataFrame</code> matrix converted to a converted to a
<code>MatrixObject</code></dd>
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<div class="block">Convert a <code>DataFrame</code> to a <code>MatrixObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataFrame</code> - the Spark <code>DataFrame</code></dd>
<dd><code>matrixMetadata</code> - the matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>DataFrame</code> matrix converted to a converted to a
<code>MatrixObject</code></dd>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;dataFrameToFrameObject(org.apache.spark.sql.Dataset&lt;org.apache.spark.sql.Row&gt;&nbsp;dataFrame)</pre>
<div class="block">Convert a <code>DataFrame</code> to a <code>FrameObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataFrame</code> - the Spark <code>DataFrame</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>DataFrame</code> matrix converted to a converted to a
<code>FrameObject</code></dd>
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<div class="block">Convert a <code>DataFrame</code> to a <code>FrameObject</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataFrame</code> - the Spark <code>DataFrame</code></dd>
<dd><code>frameMetadata</code> - the frame metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>DataFrame</code> frame converted to a converted to a
<code>FrameObject</code></dd>
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<div class="block">Convert a <code>DataFrame</code> to a
<code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> binary-block matrix.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataFrame</code> - the Spark <code>DataFrame</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>DataFrame</code> matrix converted to a
<code>JavaPairRDD&lt;MatrixIndexes,
MatrixBlock&gt;</code> binary-block matrix</dd>
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<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">Convert a <code>DataFrame</code> to a
<code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code> binary-block matrix.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataFrame</code> - the Spark <code>DataFrame</code></dd>
<dd><code>matrixMetadata</code> - the matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>DataFrame</code> matrix converted to a
<code>JavaPairRDD&lt;MatrixIndexes,
MatrixBlock&gt;</code> binary-block matrix</dd>
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<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</pre>
<div class="block">Convert a <code>DataFrame</code> to a <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code>
binary-block frame.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataFrame</code> - the Spark <code>DataFrame</code></dd>
<dd><code>frameMetadata</code> - the frame metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>DataFrame</code> matrix converted to a
<code>JavaPairRDD&lt;Long,
FrameBlock&gt;</code> binary-block frame</dd>
</dl>
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<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">If the MatrixFormat of the DataFrame has not been explicitly specified,
attempt to determine the proper MatrixFormat.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataFrame</code> - the Spark <code>DataFrame</code></dd>
<dd><code>matrixMetadata</code> - the matrix metadata, if available</dd>
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<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</pre>
<div class="block">If the FrameFormat of the DataFrame has not been explicitly specified,
attempt to determine the proper FrameFormat.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataFrame</code> - the Spark <code>DataFrame</code></dd>
<dd><code>frameMetadata</code> - the frame metadata, if available</dd>
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<div class="block">Return whether or not the DataFrame has an ID column.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>matrixMetadata</code> - the matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the DataFrame has an ID column, <code>false</code>
otherwise.</dd>
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<div class="block">Return whether or not the DataFrame has an ID column.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frameMetadata</code> - the frame metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the DataFrame has an ID column, <code>false</code>
otherwise.</dd>
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<div class="block">Return whether or not the DataFrame is vector-based.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>matrixMetadata</code> - the matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the DataFrame is vector-based, <code>false</code>
otherwise.</dd>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;javaRDDStringCSVToMatrixObject(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD)</pre>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in CSV format to a <code>MatrixObject</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>javaRDD</code> - the Java RDD of strings</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaRDD&lt;String&gt;</code> converted to a <code>MatrixObject</code></dd>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;javaRDDStringCSVToMatrixObject(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD,
<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in CSV format to a <code>MatrixObject</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>javaRDD</code> - the Java RDD of strings</dd>
<dd><code>matrixMetadata</code> - matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaRDD&lt;String&gt;</code> converted to a <code>MatrixObject</code></dd>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;javaRDDStringCSVToFrameObject(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD)</pre>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in CSV format to a <code>FrameObject</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>javaRDD</code> - the Java RDD of strings</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaRDD&lt;String&gt;</code> converted to a <code>FrameObject</code></dd>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;javaRDDStringCSVToFrameObject(org.apache.spark.api.java.JavaRDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;javaRDD,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</pre>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in CSV format to a <code>FrameObject</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>javaRDD</code> - the Java RDD of strings</dd>
<dd><code>frameMetadata</code> - frame metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaRDD&lt;String&gt;</code> converted to a <code>FrameObject</code></dd>
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<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in IJV format to a <code>MatrixObject</code>
. Note that metadata is required for IJV format.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>javaRDD</code> - the Java RDD of strings</dd>
<dd><code>matrixMetadata</code> - matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaRDD&lt;String&gt;</code> converted to a <code>MatrixObject</code></dd>
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<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</pre>
<div class="block">Convert a <code>JavaRDD&lt;String&gt;</code> in IJV format to a <code>FrameObject</code>
. Note that metadata is required for IJV format.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>javaRDD</code> - the Java RDD of strings</dd>
<dd><code>frameMetadata</code> - frame metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>JavaRDD&lt;String&gt;</code> converted to a <code>FrameObject</code></dd>
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<div class="block">Convert a <code>RDD&lt;String&gt;</code> in CSV format to a <code>MatrixObject</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rdd</code> - the RDD of strings</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>RDD&lt;String&gt;</code> converted to a <code>MatrixObject</code></dd>
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<a href="../../../../../org/apache/sysds/api/mlcontext/MatrixMetadata.html" title="class in org.apache.sysds.api.mlcontext">MatrixMetadata</a>&nbsp;matrixMetadata)</pre>
<div class="block">Convert a <code>RDD&lt;String&gt;</code> in CSV format to a <code>MatrixObject</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rdd</code> - the RDD of strings</dd>
<dd><code>matrixMetadata</code> - matrix metadata</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>RDD&lt;String&gt;</code> converted to a <code>MatrixObject</code></dd>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;rddStringCSVToFrameObject(org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;rdd)</pre>
<div class="block">Convert a <code>RDD&lt;String&gt;</code> in CSV format to a <code>FrameObject</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rdd</code> - the RDD of strings</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>RDD&lt;String&gt;</code> converted to a <code>FrameObject</code></dd>
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<pre>public static&nbsp;<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;rddStringCSVToFrameObject(org.apache.spark.rdd.RDD&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;rdd,
<a href="../../../../../org/apache/sysds/api/mlcontext/FrameMetadata.html" title="class in org.apache.sysds.api.mlcontext">FrameMetadata</a>&nbsp;frameMetadata)</pre>
<div class="block">Convert a <code>RDD&lt;String&gt;</code> in CSV format to a <code>FrameObject</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
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<div class="block">Convert a <code>RDD&lt;String&gt;</code> in IJV format to a <code>MatrixObject</code>.
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<dd><code>matrixObject</code> - the <code>MatrixObject</code></dd>
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<div class="block">Convert a <code>FrameObject</code> to a <code>JavaRDD&lt;String&gt;</code> in CSV format.</div>
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<dd><code>frameObject</code> - the <code>FrameObject</code></dd>
<dd><code>delimiter</code> - the delimiter</dd>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>matrixObject</code> - the <code>MatrixObject</code></dd>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frameObject</code> - the <code>FrameObject</code></dd>
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<div class="block">Convert a <code>MatrixObject</code> to a <code>RDD&lt;String&gt;</code> in IJV format.</div>
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<dd><code>matrixObject</code> - the <code>MatrixObject</code></dd>
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<div class="block">Convert a <code>FrameObject</code> to a <code>RDD&lt;String&gt;</code> in IJV format.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frameObject</code> - the <code>FrameObject</code></dd>
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<div class="block">Convert a <code>MatrixObject</code> to a <code>RDD&lt;String&gt;</code> in CSV format.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>matrixObject</code> - the <code>MatrixObject</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
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<div class="block">Convert a <code>FrameObject</code> to a <code>RDD&lt;String&gt;</code> in CSV format.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frameObject</code> - the <code>FrameObject</code></dd>
<dd><code>delimiter</code> - the delimiter</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>FrameObject</code> converted to a <code>RDD&lt;String&gt;</code></dd>
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<div class="block">Convert a <code>MatrixObject</code> to a <code>List&lt;String&gt;</code> in CSV format.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>matrixObject</code> - the <code>MatrixObject</code></dd>
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<div class="block">Convert a <code>FrameObject</code> to a <code>List&lt;String&gt;</code> in CSV format.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frameObject</code> - the <code>FrameObject</code></dd>
<dd><code>delimiter</code> - the delimiter</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>FrameObject</code> converted to a <code>List&lt;String&gt;</code></dd>
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<div class="block">Convert a <code>MatrixObject</code> to a <code>List&lt;String&gt;</code> in IJV format.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>matrixObject</code> - the <code>MatrixObject</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>MatrixObject</code> converted to a <code>List&lt;String&gt;</code></dd>
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<div class="block">Convert a <code>FrameObject</code> to a <code>List&lt;String&gt;</code> in IJV format.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frameObject</code> - the <code>FrameObject</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>FrameObject</code> converted to a <code>List&lt;String&gt;</code></dd>
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<dd><code>matrixObject</code> - the <code>MatrixObject</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>MatrixObject</code> converted to a <code>double[][]</code></dd>
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<div class="block">Convert a <code>MatrixObject</code> to a <code>DataFrame</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>matrixObject</code> - the <code>MatrixObject</code></dd>
<dd><code>sparkExecutionContext</code> - the Spark execution context</dd>
<dd><code>isVectorDF</code> - is the DataFrame a vector DataFrame?</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>MatrixObject</code> converted to a <code>DataFrame</code></dd>
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<div class="block">Convert a <code>FrameObject</code> to a <code>DataFrame</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frameObject</code> - the <code>FrameObject</code></dd>
<dd><code>sparkExecutionContext</code> - the Spark execution context</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>FrameObject</code> converted to a <code>DataFrame</code></dd>
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<div class="block">Convert a <code>MatrixObject</code> to a
<code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>matrixObject</code> - the <code>MatrixObject</code></dd>
<dd><code>sparkExecutionContext</code> - the Spark execution context</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>MatrixObject</code> converted to a
<code>JavaPairRDD&lt;MatrixIndexes, MatrixBlock&gt;</code></dd>
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<div class="block">Convert a <code>FrameObject</code> to a <code>JavaPairRDD&lt;Long, FrameBlock&gt;</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frameObject</code> - the <code>FrameObject</code></dd>
<dd><code>sparkExecutionContext</code> - the Spark execution context</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>FrameObject</code> converted to a
<code>JavaPairRDD&lt;Long, FrameBlock&gt;</code></dd>
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<h4>frameObjectTo2DStringArray</h4>
<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[][]&nbsp;frameObjectTo2DStringArray(<a href="../../../../../org/apache/sysds/runtime/controlprogram/caching/FrameObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">FrameObject</a>&nbsp;frameObject)</pre>
<div class="block">Convert a <code>FrameObject</code> to a two-dimensional string array.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frameObject</code> - the <code>FrameObject</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>FrameObject</code> converted to a <code>String[][]</code></dd>
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<h4>jsc</h4>
<pre>public static&nbsp;org.apache.spark.api.java.JavaSparkContext&nbsp;jsc()</pre>
<div class="block">Obtain JavaSparkContext from MLContextProxy.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Java Spark Context</dd>
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<h4>sc</h4>
<pre>public static&nbsp;org.apache.spark.SparkContext&nbsp;sc()</pre>
<div class="block">Obtain SparkContext from MLContextProxy.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Spark Context</dd>
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<h4>spark</h4>
<pre>public static&nbsp;org.apache.spark.sql.SparkSession&nbsp;spark()</pre>
<div class="block">Obtain SparkSession from MLContextProxy.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Spark Session</dd>
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