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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.sysds.lops</a></div>
<h2 title="Class AppendG" class="title">Class AppendG</h2>
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<li><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Object</a></li>
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<li><a href="Lop.html" title="class in org.apache.sysds.lops">org.apache.sysds.lops.Lop</a></li>
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<li>org.apache.sysds.lops.AppendG</li>
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<pre>public class <span class="typeNameLabel">AppendG</span>
extends <a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a></pre>
<div class="block">TODO Additional compiler enhancements:
1) Partial Shuffle Elimination - Any full or aligned blocks could be directly output from the mappers
to the result index. We only need to shuffle, sort and aggregate partial blocks. However, this requires
piggybacking changes, i.e., (1) operations with multiple result indexes, and (2) multiple operations
with the same result index.
2) Group Elimination for Append Chains - If we have chains of rappend each intermediate is shuffled and
aggregated. This is unnecessary if all offsets are known in advance. We could directly pack all rappends
in one GMR map-phase followed by one group and subsequent aggregate. However, this requires an n-ary
rappend or group (with multiple inputs).</div>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.sysds.lops.<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a></h3>
<code><a href="Lop.SimpleInstType.html" title="enum in org.apache.sysds.lops">Lop.SimpleInstType</a>, <a href="Lop.Type.html" title="enum in org.apache.sysds.lops">Lop.Type</a>, <a href="Lop.VisitStatus.html" title="enum in org.apache.sysds.lops">Lop.VisitStatus</a></code></li>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#OPCODE">OPCODE</a></span></code></th>
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<code><a href="Lop.html#_beginColumn">_beginColumn</a>, <a href="Lop.html#_beginLine">_beginLine</a>, <a href="Lop.html#_endColumn">_endColumn</a>, <a href="Lop.html#_endLine">_endLine</a>, <a href="Lop.html#_filename">_filename</a>, <a href="Lop.html#CP_CHILD_THREAD">CP_CHILD_THREAD</a>, <a href="Lop.html#CP_ROOT_THREAD_ID">CP_ROOT_THREAD_ID</a>, <a href="Lop.html#DATATYPE_PREFIX">DATATYPE_PREFIX</a>, <a href="Lop.html#FILE_SEPARATOR">FILE_SEPARATOR</a>, <a href="Lop.html#FRAME_VAR_NAME_PREFIX">FRAME_VAR_NAME_PREFIX</a>, <a href="Lop.html#INSTRUCTION_DELIMITOR">INSTRUCTION_DELIMITOR</a>, <a href="Lop.html#LITERAL_PREFIX">LITERAL_PREFIX</a>, <a href="Lop.html#MATRIX_VAR_NAME_PREFIX">MATRIX_VAR_NAME_PREFIX</a>, <a href="Lop.html#NAME_VALUE_SEPARATOR">NAME_VALUE_SEPARATOR</a>, <a href="Lop.html#OPERAND_DELIMITOR">OPERAND_DELIMITOR</a>, <a href="Lop.html#PROCESS_PREFIX">PROCESS_PREFIX</a>, <a href="Lop.html#SCALAR_VAR_NAME_PREFIX">SCALAR_VAR_NAME_PREFIX</a>, <a href="Lop.html#UPDATE_INPLACE_PREFIX">UPDATE_INPLACE_PREFIX</a>, <a href="Lop.html#VALUETYPE_PREFIX">VALUETYPE_PREFIX</a>, <a href="Lop.html#VARIABLE_NAME_PLACEHOLDER">VARIABLE_NAME_PLACEHOLDER</a></code></li>
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<th class="colFirst" scope="col">Constructor</th>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.sysds.lops.Lop,org.apache.sysds.lops.Lop,org.apache.sysds.lops.Lop,org.apache.sysds.lops.Lop,org.apache.sysds.common.Types.DataType,org.apache.sysds.common.Types.ValueType,boolean,org.apache.sysds.common.Types.ExecType)">AppendG</a></span>&#8203;(<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input1,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input2,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input3,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input4,
<a href="../common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
boolean&nbsp;cbind,
<a href="../common/Types.ExecType.html" title="enum in org.apache.sysds.common">Types.ExecType</a>&nbsp;et)</code></th>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance 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>
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<th class="colSecond" scope="col">Method</th>
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<td class="colFirst"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getInstructions(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)">getInstructions</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;input_index1,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;input_index2,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;input_index3,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;input_index4,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;output_index)</code></th>
<td class="colLast">
<div class="block">Method should be overridden if needed</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#init(org.apache.sysds.lops.Lop,org.apache.sysds.lops.Lop,org.apache.sysds.lops.Lop,org.apache.sysds.lops.Lop,org.apache.sysds.common.Types.DataType,org.apache.sysds.common.Types.ValueType,org.apache.sysds.common.Types.ExecType)">init</a></span>&#8203;(<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input1,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input2,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input3,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input4,
<a href="../common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../common/Types.ExecType.html" title="enum in org.apache.sysds.common">Types.ExecType</a>&nbsp;et)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th>
<td class="colLast">
<div class="block">Method to have Lops print their state.</div>
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<h3>Methods inherited from class&nbsp;org.apache.sysds.lops.<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a></h3>
<code><a href="Lop.html#activatePrefetch()">activatePrefetch</a>, <a href="Lop.html#addInput(org.apache.sysds.lops.Lop)">addInput</a>, <a href="Lop.html#addOutput(org.apache.sysds.lops.Lop)">addOutput</a>, <a href="Lop.html#addToDag(org.apache.sysds.lops.compile.Dag)">addToDag</a>, <a href="Lop.html#createReachable(int)">createReachable</a>, <a href="Lop.html#getAggType()">getAggType</a>, <a href="Lop.html#getBeginColumn()">getBeginColumn</a>, <a href="Lop.html#getBeginLine()">getBeginLine</a>, <a href="Lop.html#getBroadcastInput()">getBroadcastInput</a>, <a href="Lop.html#getDataType()">getDataType</a>, <a href="Lop.html#getEndColumn()">getEndColumn</a>, <a href="Lop.html#getEndLine()">getEndLine</a>, <a href="Lop.html#getExecType()">getExecType</a>, <a href="Lop.html#getFederatedOutput()">getFederatedOutput</a>, <a href="Lop.html#getFilename()">getFilename</a>, <a href="Lop.html#getID()">getID</a>, <a href="Lop.html#getInputs()">getInputs</a>, <a href="Lop.html#getInstructions()">getInstructions</a>, <a href="Lop.html#getInstructions(int,int,int,int,int,int,int,int)">getInstructions</a>, <a href="Lop.html#getInstructions(java.lang.String)">getInstructions</a>, <a href="Lop.html#getInstructions(java.lang.String%5B%5D,java.lang.String)">getInstructions</a>, <a href="Lop.html#getInstructions(java.lang.String%5B%5D,java.lang.String%5B%5D)">getInstructions</a>, <a href="Lop.html#getInstructions(java.lang.String,java.lang.String)">getInstructions</a>, <a href="Lop.html#getInstructions(java.lang.String,java.lang.String,java.lang.String)">getInstructions</a>, <a href="Lop.html#getInstructions(java.lang.String,java.lang.String,java.lang.String,java.lang.String)">getInstructions</a>, <a href="Lop.html#getInstructions(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)">getInstructions</a>, <a href="Lop.html#getInstructions(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)">getInstructions</a>, <a href="Lop.html#getInstructions(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)">getInstructions</a>, <a href="Lop.html#getLevel()">getLevel</a>, <a href="Lop.html#getOutputParameters()">getOutputParameters</a>, <a href="Lop.html#getOutputs()">getOutputs</a>, <a href="Lop.html#getPrivacyConstraint()">getPrivacyConstraint</a>, <a href="Lop.html#getProducesIntermediateOutput()">getProducesIntermediateOutput</a>, <a href="Lop.html#getReachable()">getReachable</a>, <a href="Lop.html#getSimpleInstructionType()">getSimpleInstructionType</a>, <a href="Lop.html#getType()">getType</a>, <a href="Lop.html#getValueType()">getValueType</a>, <a href="Lop.html#getVisited()">getVisited</a>, <a href="Lop.html#isAllOutputsCP()">isAllOutputsCP</a>, <a href="Lop.html#isAsynchronousOp()">isAsynchronousOp</a>, <a href="Lop.html#isDataExecLocation()">isDataExecLocation</a>, <a href="Lop.html#isExecSpark()">isExecSpark</a>, <a href="Lop.html#isVariable()">isVariable</a>, <a href="Lop.html#isVisited()">isVisited</a>, <a href="Lop.html#prefetchActivated()">prefetchActivated</a>, <a href="Lop.html#prepInputOperand(int)">prepInputOperand</a>, <a href="Lop.html#prepInputOperand(java.lang.String)">prepInputOperand</a>, <a href="Lop.html#prepOperand(java.lang.String,org.apache.sysds.common.Types.DataType,org.apache.sysds.common.Types.ValueType)">prepOperand</a>, <a href="Lop.html#prepOperand(java.lang.String,org.apache.sysds.common.Types.DataType,org.apache.sysds.common.Types.ValueType,boolean)">prepOperand</a>, <a href="Lop.html#prepOutputOperand()">prepOutputOperand</a>, <a href="Lop.html#prepOutputOperand(int)">prepOutputOperand</a>, <a href="Lop.html#prepOutputOperand(java.lang.String)">prepOutputOperand</a>, <a href="Lop.html#prepScalarInputOperand(java.lang.String)">prepScalarInputOperand</a>, <a href="Lop.html#prepScalarInputOperand(org.apache.sysds.common.Types.ExecType)">prepScalarInputOperand</a>, <a href="Lop.html#prepScalarLabel()">prepScalarLabel</a>, <a href="Lop.html#prepScalarOperand(org.apache.sysds.common.Types.ExecType,java.lang.String)">prepScalarOperand</a>, <a href="Lop.html#printErrorLocation()">printErrorLocation</a>, <a href="Lop.html#removeConsumer()">removeConsumer</a>, <a href="Lop.html#removeInput(org.apache.sysds.lops.Lop)">removeInput</a>, <a href="Lop.html#removeOutput(org.apache.sysds.lops.Lop)">removeOutput</a>, <a href="Lop.html#replaceInput(org.apache.sysds.lops.Lop,org.apache.sysds.lops.Lop)">replaceInput</a>, <a href="Lop.html#resetVisitStatus()">resetVisitStatus</a>, <a href="Lop.html#setAllPositions(java.lang.String,int,int,int,int)">setAllPositions</a>, <a href="Lop.html#setAsynchronous(boolean)">setAsynchronous</a>, <a href="Lop.html#setBeginColumn(int)">setBeginColumn</a>, <a href="Lop.html#setBeginLine(int)">setBeginLine</a>, <a href="Lop.html#setConsumerCount(int)">setConsumerCount</a>, <a href="Lop.html#setDataType(org.apache.sysds.common.Types.DataType)">setDataType</a>, <a href="Lop.html#setEndColumn(int)">setEndColumn</a>, <a href="Lop.html#setEndLine(int)">setEndLine</a>, <a href="Lop.html#setExecType(org.apache.sysds.common.Types.ExecType)">setExecType</a>, <a href="Lop.html#setFederatedOutput(org.apache.sysds.runtime.instructions.fed.FEDInstruction.FederatedOutput)">setFederatedOutput</a>, <a href="Lop.html#setFilename(java.lang.String)">setFilename</a>, <a href="Lop.html#setNewID()">setNewID</a>, <a href="Lop.html#setPrivacyConstraint(org.apache.sysds.runtime.privacy.PrivacyConstraint)">setPrivacyConstraint</a>, <a href="Lop.html#setValueType(org.apache.sysds.common.Types.ValueType)">setValueType</a>, <a href="Lop.html#setVisited()">setVisited</a>, <a href="Lop.html#setVisited(org.apache.sysds.lops.Lop.VisitStatus)">setVisited</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></li>
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<h4>OPCODE</h4>
<pre>public static final&nbsp;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a> OPCODE</pre>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.sysds.lops.AppendG.OPCODE">Constant Field Values</a></dd>
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<h4>AppendG</h4>
<pre>public&nbsp;AppendG&#8203;(<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input1,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input2,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input3,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input4,
<a href="../common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
boolean&nbsp;cbind,
<a href="../common/Types.ExecType.html" title="enum in org.apache.sysds.common">Types.ExecType</a>&nbsp;et)</pre>
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<h4>init</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;init&#8203;(<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input1,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input2,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input3,
<a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a>&nbsp;input4,
<a href="../common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../common/Types.ExecType.html" title="enum in org.apache.sysds.common">Types.ExecType</a>&nbsp;et)</pre>
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<h4>toString</h4>
<pre class="methodSignature">public&nbsp;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;toString()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="Lop.html#toString()">Lop</a></code></span></div>
<div class="block">Method to have Lops print their state. This is for debugging purposes.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="Lop.html#toString()">toString</a></code>&nbsp;in class&nbsp;<code><a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a></code></dd>
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<a id="getInstructions(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)">
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<h4>getInstructions</h4>
<pre class="methodSignature">public&nbsp;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;getInstructions&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;input_index1,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;input_index2,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;input_index3,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;input_index4,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;output_index)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="Lop.html#getInstructions(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)">Lop</a></code></span></div>
<div class="block">Method should be overridden if needed</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="Lop.html#getInstructions(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)">getInstructions</a></code>&nbsp;in class&nbsp;<code><a href="Lop.html" title="class in org.apache.sysds.lops">Lop</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>input_index1</code> - input 1</dd>
<dd><code>input_index2</code> - input 2</dd>
<dd><code>input_index3</code> - input 3</dd>
<dd><code>input_index4</code> - input 4</dd>
<dd><code>output_index</code> - output</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>instructions as string</dd>
</dl>
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