Where

public final class Where

Returns locations of nonzero / true values in a tensor.

This operation returns the coordinates of true elements in `condition`. The coordinates are returned in a 2-D tensor where the first dimension (rows) represents the number of true elements, and the second dimension (columns) represents the coordinates of the true elements. Keep in mind, the shape of the output tensor can vary depending on how many true values there are in `condition`. Indices are output in row-major order.

For example:

# 'input' tensor is [[True, False]
 #                    [True, False]]
 # 'input' has two true values, so output has two coordinates.
 # 'input' has rank of 2, so coordinates have two indices.
 where(input) ==> [[0, 0],
                   [1, 0]]
 
 # `condition` tensor is [[[True, False]
 #                     [True, False]]
 #                    [[False, True]
 #                     [False, True]]
 #                    [[False, False]
 #                     [False, True]]]
 # 'input' has 5 true values, so output has 5 coordinates.
 # 'input' has rank of 3, so coordinates have three indices.
 where(input) ==> [[0, 0, 0],
                   [0, 1, 0],
                   [1, 0, 1],
                   [1, 1, 1],
                   [2, 1, 1]]
 
 # `condition` tensor is [[[1.5,  0.0]
 #                     [-0.5, 0.0]]
 #                    [[0.0,  0.25]
 #                     [0.0,  0.75]]
 #                    [[0.0,  0.0]
 #                     [0.0,  0.01]]]
 # 'input' has 5 nonzero values, so output has 5 coordinates.
 # 'input' has rank of 3, so coordinates have three indices.
 where(input) ==> [[0, 0, 0],
                   [0, 1, 0],
                   [1, 0, 1],
                   [1, 1, 1],
                   [2, 1, 1]]
 
 # `condition` tensor is [[[1.5 + 0.0j, 0.0  + 0.0j]
 #                     [0.0 + 0.5j, 0.0  + 0.0j]]
 #                    [[0.0 + 0.0j, 0.25 + 1.5j]
 #                     [0.0 + 0.0j, 0.75 + 0.0j]]
 #                    [[0.0 + 0.0j, 0.0  + 0.0j]
 #                     [0.0 + 0.0j, 0.01 + 0.0j]]]
 # 'input' has 5 nonzero magnitude values, so output has 5 coordinates.
 # 'input' has rank of 3, so coordinates have three indices.
 where(input) ==> [[0, 0, 0],
                   [0, 1, 0],
                   [1, 0, 1],
                   [1, 1, 1],
                   [2, 1, 1]]
 

Constants

String

OP_NAME

The name of this op, as known by TensorFlow core engine

Public Methods

Output<TInt64>	asOutput() Returns the symbolic handle of the tensor.
static Where	create(Scope scope, Operand<? extends TType> condition) Factory method to create a class wrapping a new Where operation.
Output<TInt64>	index()

Inherited Methods

From class org.tensorflow.op.RawOp

final boolean	equals(Object obj)
final int	hashCode()
Operation	op() Return this unit of computation as a single Operation.
final String	toString()

From class java.lang.Object

boolean	equals(Object arg0)
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

From interface org.tensorflow.op.Op

abstract ExecutionEnvironment	env() Return the execution environment this op was created in.
abstract Operation	op() Return this unit of computation as a single Operation.

From interface org.tensorflow.Operand

abstract Output<TInt64>	asOutput() Returns the symbolic handle of the tensor.
abstract TInt64	asTensor() Returns the tensor at this operand.
abstract Shape	shape() Returns the (possibly partially known) shape of the tensor referred to by the Output of this operand.
abstract Class<TInt64>	type() Returns the tensor type of this operand

From interface org.tensorflow.ndarray.Shaped

abstract int	rank()
abstract Shape	shape()
abstract long	size() Computes and returns the total size of this container, in number of values.

Constants

public static final String OP_NAME

The name of this op, as known by TensorFlow core engine

Constant Value: "Where"

Public Methods

public Output<TInt64> asOutput ()

Returns the symbolic handle of the tensor.

Inputs to TensorFlow operations are outputs of another TensorFlow operation. This method is used to obtain a symbolic handle that represents the computation of the input.

public static Where create (Scope scope, Operand<? extends TType> condition)

Factory method to create a class wrapping a new Where operation.

Parameters

scope	current scope

Returns

• a new instance of Where

public Output<TInt64> index ()