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| <h2 title="Class LibMatrixDatagen" class="title">Class LibMatrixDatagen</h2> |
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| <pre>public class <span class="typeNameLabel">LibMatrixDatagen</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> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd"> </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="https://docs.oracle.com/javase/8/docs/api/java/util/stream/LongStream.html?is-external=true" title="class or interface in java.util.stream">LongStream</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/matrix/data/LibMatrixDatagen.html#computeNNZperBlock-long-long-int-double-">computeNNZperBlock</a></span>(long nrow, |
| long ncol, |
| int blen, |
| double sparsity)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../org/apache/sysds/runtime/matrix/data/RandomMatrixGenerator.html" title="class in org.apache.sysds.runtime.matrix.data">RandomMatrixGenerator</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/matrix/data/LibMatrixDatagen.html#createRandomMatrixGenerator-java.lang.String-int-int-int-double-double-double-java.lang.String-">createRandomMatrixGenerator</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> pdfStr, |
| int r, |
| int c, |
| int blen, |
| double sp, |
| double min, |
| double max, |
| <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> distParams)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/matrix/data/LibMatrixDatagen.html#generateRandomMatrix-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.RandomMatrixGenerator-org.apache.commons.math3.random.Well1024a-long-">generateRandomMatrix</a></span>(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> out, |
| <a href="../../../../../../org/apache/sysds/runtime/matrix/data/RandomMatrixGenerator.html" title="class in org.apache.sysds.runtime.matrix.data">RandomMatrixGenerator</a> rgen, |
| org.apache.commons.math3.random.Well1024a bigrand, |
| long bSeed)</code> |
| <div class="block">Function to generate a matrix of random numbers.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/matrix/data/LibMatrixDatagen.html#generateRandomMatrix-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.RandomMatrixGenerator-org.apache.commons.math3.random.Well1024a-long-int-">generateRandomMatrix</a></span>(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> out, |
| <a href="../../../../../../org/apache/sysds/runtime/matrix/data/RandomMatrixGenerator.html" title="class in org.apache.sysds.runtime.matrix.data">RandomMatrixGenerator</a> rgen, |
| org.apache.commons.math3.random.Well1024a bigrand, |
| long bSeed, |
| int k)</code> |
| <div class="block">Function to generate a matrix of random numbers.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/matrix/data/LibMatrixDatagen.html#generateSample-org.apache.sysds.runtime.matrix.data.MatrixBlock-long-int-boolean-long-">generateSample</a></span>(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> out, |
| long range, |
| int size, |
| boolean replace, |
| long seed)</code> |
| <div class="block">Generates a sample of size <code>size</code> from a range of values [1,range].</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/matrix/data/LibMatrixDatagen.html#generateSequence-org.apache.sysds.runtime.matrix.data.MatrixBlock-double-double-double-">generateSequence</a></span>(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> out, |
| double from, |
| double to, |
| double incr)</code> |
| <div class="block">Method to generate a sequence according to the given parameters.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <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/runtime/matrix/data/LibMatrixDatagen.html#generateUniqueSeedPath-java.lang.String-">generateUniqueSeedPath</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> basedir)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/matrix/data/LibMatrixDatagen.html#isShortcutRandOperation-double-double-double-org.apache.sysds.runtime.matrix.data.RandomMatrixGenerator.PDF-">isShortcutRandOperation</a></span>(double min, |
| double max, |
| double sparsity, |
| org.apache.sysds.runtime.matrix.data.RandomMatrixGenerator.PDF pdf)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static org.apache.commons.math3.random.Well1024a</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/matrix/data/LibMatrixDatagen.html#setupSeedsForRand-long-">setupSeedsForRand</a></span>(long seed)</code> |
| <div class="block">A matrix of random numbers is generated by using multiple seeds, one for each |
| block.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/matrix/data/LibMatrixDatagen.html#updateSeqIncr-double-double-double-">updateSeqIncr</a></span>(double seq_from, |
| double seq_to, |
| double seq_incr)</code> </td> |
| </tr> |
| </table> |
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| <h3>Methods inherited from class java.lang.<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></h3> |
| <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> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
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| <!-- --> |
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| <h3>Method Detail</h3> |
| <a name="isShortcutRandOperation-double-double-double-org.apache.sysds.runtime.matrix.data.RandomMatrixGenerator.PDF-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isShortcutRandOperation</h4> |
| <pre>public static boolean isShortcutRandOperation(double min, |
| double max, |
| double sparsity, |
| org.apache.sysds.runtime.matrix.data.RandomMatrixGenerator.PDF pdf)</pre> |
| </li> |
| </ul> |
| <a name="updateSeqIncr-double-double-double-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>updateSeqIncr</h4> |
| <pre>public static double updateSeqIncr(double seq_from, |
| double seq_to, |
| double seq_incr)</pre> |
| </li> |
| </ul> |
| <a name="generateUniqueSeedPath-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>generateUniqueSeedPath</h4> |
| <pre>public 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> generateUniqueSeedPath(<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> basedir)</pre> |
| </li> |
| </ul> |
| <a name="setupSeedsForRand-long-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setupSeedsForRand</h4> |
| <pre>public static org.apache.commons.math3.random.Well1024a setupSeedsForRand(long seed)</pre> |
| <div class="block">A matrix of random numbers is generated by using multiple seeds, one for each |
| block. Such block-level seeds are produced via Well equidistributed long-period linear |
| generator (Well1024a). For a given seed, this function sets up the block-level seeds. |
| |
| This function is invoked from both CP (RandCPInstruction.processInstruction()) |
| as well as MR (RandMR.java while setting up the Rand job).</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>seed</code> - seed for random generator</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Well1024a pseudo-random number generator</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="computeNNZperBlock-long-long-int-double-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>computeNNZperBlock</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a> |
| public static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/stream/LongStream.html?is-external=true" title="class or interface in java.util.stream">LongStream</a> computeNNZperBlock(long nrow, |
| long ncol, |
| int blen, |
| double sparsity)</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| </li> |
| </ul> |
| <a name="createRandomMatrixGenerator-java.lang.String-int-int-int-double-double-double-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createRandomMatrixGenerator</h4> |
| <pre>public static <a href="../../../../../../org/apache/sysds/runtime/matrix/data/RandomMatrixGenerator.html" title="class in org.apache.sysds.runtime.matrix.data">RandomMatrixGenerator</a> createRandomMatrixGenerator(<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> pdfStr, |
| int r, |
| int c, |
| int blen, |
| double sp, |
| double min, |
| double max, |
| <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> distParams)</pre> |
| </li> |
| </ul> |
| <a name="generateRandomMatrix-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.RandomMatrixGenerator-org.apache.commons.math3.random.Well1024a-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>generateRandomMatrix</h4> |
| <pre>public static void generateRandomMatrix(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> out, |
| <a href="../../../../../../org/apache/sysds/runtime/matrix/data/RandomMatrixGenerator.html" title="class in org.apache.sysds.runtime.matrix.data">RandomMatrixGenerator</a> rgen, |
| org.apache.commons.math3.random.Well1024a bigrand, |
| long bSeed)</pre> |
| <div class="block">Function to generate a matrix of random numbers. This is invoked both |
| from CP as well as from MR. In case of CP, it generates an entire matrix |
| block-by-block. A <code>bigrand</code> is passed so that block-level |
| seeds are generated internally. In case of MR, it generates a single |
| block for given block-level seed <code>bSeed</code>. |
| |
| When pdf="uniform", cell values are drawn from uniform distribution in |
| range <code>[min,max]</code>. |
| |
| When pdf="normal", cell values are drawn from standard normal |
| distribution N(0,1). The range of generated values will always be |
| (-Inf,+Inf).</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>out</code> - output matrix block</dd> |
| <dd><code>rgen</code> - random matrix generator</dd> |
| <dd><code>bigrand</code> - Well1024a pseudo-random number generator</dd> |
| <dd><code>bSeed</code> - seed for random generator</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="generateRandomMatrix-org.apache.sysds.runtime.matrix.data.MatrixBlock-org.apache.sysds.runtime.matrix.data.RandomMatrixGenerator-org.apache.commons.math3.random.Well1024a-long-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>generateRandomMatrix</h4> |
| <pre>public static void generateRandomMatrix(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> out, |
| <a href="../../../../../../org/apache/sysds/runtime/matrix/data/RandomMatrixGenerator.html" title="class in org.apache.sysds.runtime.matrix.data">RandomMatrixGenerator</a> rgen, |
| org.apache.commons.math3.random.Well1024a bigrand, |
| long bSeed, |
| int k)</pre> |
| <div class="block">Function to generate a matrix of random numbers. This is invoked both |
| from CP as well as from MR. In case of CP, it generates an entire matrix |
| block-by-block. A <code>bigrand</code> is passed so that block-level |
| seeds are generated internally. In case of MR, it generates a single |
| block for given block-level seed <code>bSeed</code>. |
| |
| When pdf="uniform", cell values are drawn from uniform distribution in |
| range <code>[min,max]</code>. |
| |
| When pdf="normal", cell values are drawn from standard normal |
| distribution N(0,1). The range of generated values will always be |
| (-Inf,+Inf).</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>out</code> - output matrix block</dd> |
| <dd><code>rgen</code> - random matrix generator</dd> |
| <dd><code>bigrand</code> - Well1024a pseudo-random number generator</dd> |
| <dd><code>bSeed</code> - seed for random generator</dd> |
| <dd><code>k</code> - ?</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="generateSequence-org.apache.sysds.runtime.matrix.data.MatrixBlock-double-double-double-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>generateSequence</h4> |
| <pre>public static void generateSequence(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> out, |
| double from, |
| double to, |
| double incr)</pre> |
| <div class="block">Method to generate a sequence according to the given parameters. The |
| generated sequence is always in dense format. |
| |
| Both end points specified <code>from</code> and <code>to</code> must be |
| included in the generated sequence i.e., [from,to] both inclusive. Note |
| that, <code>to</code> is included only if (to-from) is perfectly |
| divisible by <code>incr</code>. |
| |
| For example, seq(0,1,0.5) generates (0.0 0.5 1.0) |
| whereas seq(0,1,0.6) generates (0.0 0.6) but not (0.0 0.6 1.0)</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>out</code> - output matrix block</dd> |
| <dd><code>from</code> - lower end point</dd> |
| <dd><code>to</code> - upper end point</dd> |
| <dd><code>incr</code> - increment value</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="generateSample-org.apache.sysds.runtime.matrix.data.MatrixBlock-long-int-boolean-long-"> |
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| <h4>generateSample</h4> |
| <pre>public static void generateSample(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> out, |
| long range, |
| int size, |
| boolean replace, |
| long seed)</pre> |
| <div class="block">Generates a sample of size <code>size</code> from a range of values [1,range]. |
| <code>replace</code> defines if sampling is done with or without replacement.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>out</code> - output matrix block</dd> |
| <dd><code>range</code> - range upper bound</dd> |
| <dd><code>size</code> - sample size</dd> |
| <dd><code>replace</code> - if true, sample with replacement</dd> |
| <dd><code>seed</code> - seed for random generator</dd> |
| </dl> |
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