DeltaDictionary (Apache SystemDS 3.1.0 API)

java.lang.Object
- org.apache.sysds.runtime.compress.colgroup.dictionary.ADictionary
- - org.apache.sysds.runtime.compress.colgroup.dictionary.Dictionary
  - - org.apache.sysds.runtime.compress.colgroup.dictionary.DeltaDictionary

All Implemented Interfaces:

Serializable
```
public class DeltaDictionary
extends Dictionary
```
This dictionary class is a specialization for the DeltaDDCColgroup. Here the adjustments for operations for the delta encoded values are implemented.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.sysds.runtime.compress.colgroup.dictionary.ADictionary
  ADictionary.DictType

Constructor Summary

Constructors
Constructor Description

DeltaDictionary(double[] values, int numCols)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`DeltaDictionary`	`applyScalarOp(ScalarOperator op)`	Allocate a new dictionary and applies the scalar operation on each cell of to then return the new dictionary.

Methods inherited from class org.apache.sysds.runtime.compress.colgroup.dictionary.Dictionary
addToEntry, addToEntry, addToEntryVectorized, aggregate, aggregateCols, aggregateColsWithReference, aggregateRows, aggregateRowsWithDefault, aggregateRowsWithReference, aggregateWithReference, applyScalarOpAndAppend, applyScalarOpWithReference, applyUnaryOp, applyUnaryOpAndAppend, applyUnaryOpWithReference, binOpLeft, binOpLeftAndAppend, binOpLeftWithReference, binOpRight, binOpRight, binOpRightAndAppend, binOpRightWithReference, centralMoment, centralMomentWithDefault, centralMomentWithReference, clone, colProduct, colProductWithReference, colSum, colSumSq, colSumSqWithReference, containsValue, containsValueWithReference, create, createNoCheck, equals, getDictType, getExactSizeOnDisk, getInMemorySize, getMBDict, getNumberNonZeros, getNumberNonZerosWithReference, getNumberOfValues, getSparsity, getString, getValue, getValue, getValues, multiplyScalar, preaggValuesFromDense, product, productAllRowsToDouble, productAllRowsToDoubleWithDefault, productAllRowsToDoubleWithReference, productWithDefault, productWithReference, read, replace, replaceWithReference, rexpandCols, rexpandColsWithReference, scaleTuples, sliceOutColumnRange, subtractTuple, sum, sumAllRowsToDouble, sumAllRowsToDoubleSq, sumAllRowsToDoubleSqWithDefault, sumAllRowsToDoubleSqWithReference, sumAllRowsToDoubleWithDefault, sumAllRowsToDoubleWithReference, sumRowWithReference, sumSq, sumSqWithReference, toString, write

Methods inherited from class org.apache.sysds.runtime.compress.colgroup.dictionary.ADictionary
centralMoment, centralMomentWithDefault, centralMomentWithReference, equals

Methods inherited from class java.lang.Object
getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DeltaDictionary
```
public DeltaDictionary(double[] values,
                       int numCols)
```
- Method Detail
  - applyScalarOp
```
public DeltaDictionary applyScalarOp(ScalarOperator op)
```
    Description copied from class: ADictionary
    
    Allocate a new dictionary and applies the scalar operation on each cell of to then return the new dictionary.
    
    Overrides:
    
    applyScalarOp in class Dictionary
    
    Parameters:
    
    op - The operator.
    
    Returns:
    
    The new dictionary to return.