com.yahoo.tensor.functions

Class Rename

java.lang.Object

com.yahoo.tensor.functions.TensorFunction

com.yahoo.tensor.functions.PrimitiveTensorFunction

com.yahoo.tensor.functions.Rename

@Beta
public class Rename
extends PrimitiveTensorFunction

The rename tensor function returns a tensor where some dimensions are assigned new names.

Author:

bratseth

Field Summary

Fields

Modifier and Type	Field and Description
private TensorFunction	argument
private List<String>	fromDimensions
private List<String>	toDimensions

Constructor Summary

Constructors

Constructor and Description
Rename(TensorFunction argument, List<String> fromDimensions, List<String> toDimensions)

Method Summary

Modifier and Type	Method and Description
Tensor	evaluate(EvaluationContext context) Evaluates this tensor.
private Map<String,String>	fromToMap()
List<TensorFunction>	functionArguments() Returns the function arguments of this node in the order they are applied
private TensorAddress	rename(TensorAddress address, int[] toIndexes)
private TensorType	rename(TensorType type, Map<String,String> fromToMap)
TensorFunction	replaceArguments(List<TensorFunction> arguments) Returns a copy of this tensor function with the arguments replaced by the given list of arguments.
PrimitiveTensorFunction	toPrimitive() Translate this function - and all of its arguments recursively - to a tree of primitive functions only.
String	toString(ToStringContext context) Return a string representation of this context.
private String	toVectorString(List<String> elements)

Methods inherited from class com.yahoo.tensor.functions.TensorFunction

evaluate, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

argument

private final TensorFunction argument

fromDimensions

private final List<String> fromDimensions

toDimensions

private final List<String> toDimensions

Constructor Detail

Rename

public Rename(TensorFunction argument,
              List<String> fromDimensions,
              List<String> toDimensions)

Method Detail

functionArguments

public List<TensorFunction> functionArguments()

Description copied from class: TensorFunction

Returns the function arguments of this node in the order they are applied

Specified by:

functionArguments in class TensorFunction

replaceArguments

public TensorFunction replaceArguments(List<TensorFunction> arguments)

Description copied from class: TensorFunction

Returns a copy of this tensor function with the arguments replaced by the given list of arguments.

Specified by:

replaceArguments in class TensorFunction

toPrimitive

public PrimitiveTensorFunction toPrimitive()

Description copied from class: TensorFunction

Translate this function - and all of its arguments recursively - to a tree of primitive functions only.

Specified by:

toPrimitive in class TensorFunction

Returns:

a tree of primitive functions implementing this

evaluate

public Tensor evaluate(EvaluationContext context)

Description copied from class: TensorFunction

Evaluates this tensor.

Specified by:

evaluate in class TensorFunction

Parameters:

context - a context which must be passed to all nexted functions when evaluating

rename

private TensorType rename(TensorType type,
                          Map<String,String> fromToMap)

rename

private TensorAddress rename(TensorAddress address,
                             int[] toIndexes)

toString

public String toString(ToStringContext context)

Description copied from class: TensorFunction

Return a string representation of this context.

Specified by:

toString in class TensorFunction

Parameters:

context - a context which must be passed to all nexted functions when requesting the string value

fromToMap

private Map<String,String> fromToMap()

toVectorString

private String toVectorString(List<String> elements)