Package org.apache.sysds.lops
Class CoVariance
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- org.apache.sysds.lops.Lop
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- org.apache.sysds.lops.CoVariance
 
 
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 public class CoVariance extends Lop Lop to compute covariance between two 1D matrices
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Nested Class Summary- 
Nested classes/interfaces inherited from class org.apache.sysds.lops.LopLop.SimpleInstType, Lop.Type, Lop.VisitStatus
 
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Field Summary- 
Fields inherited from class org.apache.sysds.lops.Lop_beginColumn, _beginLine, _endColumn, _endLine, _filename, CP_CHILD_THREAD, CP_ROOT_THREAD_ID, DATATYPE_PREFIX, FILE_SEPARATOR, FRAME_VAR_NAME_PREFIX, INSTRUCTION_DELIMITOR, LITERAL_PREFIX, MATRIX_VAR_NAME_PREFIX, NAME_VALUE_SEPARATOR, OPERAND_DELIMITOR, PROCESS_PREFIX, SAMPLE_FRACTION, SCALAR_VAR_NAME_PREFIX, UPDATE_INPLACE_PREFIX, VALUETYPE_PREFIX, VARIABLE_NAME_PLACEHOLDER
 
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Constructor SummaryConstructors Constructor Description CoVariance(Lop input1, Lop input2, Types.DataType dt, Types.ValueType vt, int numThreads, Types.ExecType et)CoVariance(Lop input1, Lop input2, Lop input3, Types.DataType dt, Types.ValueType vt, int numThreads, Types.ExecType et)
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Method SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description StringgetInstructions(String input1, String input2, String output)Function two generate CP instruction to compute unweighted covariance.StringgetInstructions(String input1, String input2, String input3, String output)Function two generate CP instruction to compute weighted covariance.StringtoString()Method to have Lops print their state.- 
Methods inherited from class org.apache.sysds.lops.LopactivatePrefetch, addInput, addOutput, addToDag, createReachable, getAggType, getBeginColumn, getBeginLine, getBroadcastInput, getDataType, getEndColumn, getEndLine, getExecType, getFederatedOutput, getFilename, getID, getInputs, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getLevel, getOutputParameters, getOutputs, getPrivacyConstraint, getProducesIntermediateOutput, getReachable, getSimpleInstructionType, getType, getValueType, getVisited, isAllOutputsCP, isDataExecLocation, isVariable, prefetchActivated, prepInputOperand, prepInputOperand, prepOperand, prepOperand, prepOutputOperand, prepOutputOperand, prepOutputOperand, prepScalarInputOperand, prepScalarInputOperand, prepScalarLabel, prepScalarOperand, printErrorLocation, removeConsumer, removeOutput, replaceInput, resetVisitStatus, setAllPositions, setBeginColumn, setBeginLine, setConsumerCount, setDataType, setEndColumn, setEndLine, setExecType, setFederatedOutput, setFilename, setPrivacyConstraint, setValueType, setVisited
 
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Constructor Detail- 
CoVariancepublic CoVariance(Lop input1, Lop input2, Types.DataType dt, Types.ValueType vt, int numThreads, Types.ExecType et) 
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CoVariancepublic CoVariance(Lop input1, Lop input2, Lop input3, Types.DataType dt, Types.ValueType vt, int numThreads, Types.ExecType et) 
 
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Method Detail- 
toStringpublic String toString() Description copied from class:LopMethod to have Lops print their state. This is for debugging purposes.
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getInstructionspublic String getInstructions(String input1, String input2, String output) Function two generate CP instruction to compute unweighted covariance. input1 -> input column 1 input2 -> input column 2- Overrides:
- getInstructionsin class- Lop
- Parameters:
- input1- input 1
- input2- input 2
- output- output
- Returns:
- instructions as string
 
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getInstructionspublic String getInstructions(String input1, String input2, String input3, String output) Function two generate CP instruction to compute weighted covariance. input1 -> input column 1 input2 -> input column 2 input3 -> weights- Overrides:
- getInstructionsin class- Lop
- Parameters:
- input1- input 1
- input2- input 2
- input3- input 3
- output- output
- Returns:
- instructions as string
 
 
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