org.tensorflow.op.core

Class Stack<T>

java.lang.Object

org.tensorflow.op.PrimitiveOp

org.tensorflow.op.core.Stack<T>

Type Parameters:

T - data type for output() output

All Implemented Interfaces:

Op, Operand<T>

@Operator
public final class Stack<T>
extends PrimitiveOp
implements Operand<T>

Packs a list of `N` rank-`R` tensors into one rank-`(R+1)` tensor.

Packs the `N` tensors in `values` into a tensor with rank one higher than each tensor in `values`, by packing them along the `axis` dimension. Given a list of tensors of shape `(A, B, C)`;

if `axis == 0` then the `output` tensor will have the shape `(N, A, B, C)`. if `axis == 1` then the `output` tensor will have the shape `(A, N, B, C)`. Etc.

For example:

 # 'x' is [1, 4]
 # 'y' is [2, 5]
 # 'z' is [3, 6]
 pack([x, y, z]) => [[1, 4], [2, 5], [3, 6]]  # Pack along first dim.
 pack([x, y, z], axis=1) => [[1, 2, 3], [4, 5, 6]]
 

This is the opposite of `unpack`.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Stack.Options Optional attributes for Stack

Field Summary

Fields inherited from class org.tensorflow.op.PrimitiveOp

operation

Method Summary

Modifier and Type	Method and Description
Output<T>	asOutput() Returns the symbolic handle of a tensor.
static Stack.Options	axis(Long axis)
static <T> Stack<T>	create(Scope scope, Operand<T> values, Stack.Options... options) Factory method to create a class to wrap a new Stack operation to the graph.
Output<T>	output() The packed tensor.

Methods inherited from class org.tensorflow.op.PrimitiveOp

equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

create

public static <T> Stack<T> create(Scope scope,
                                  Operand<T> values,
                                  Stack.Options... options)

Factory method to create a class to wrap a new Stack operation to the graph.

Parameters:

scope - current graph scope

values - Must be of same shape and type.

options - carries optional attributes values

Returns:

a new instance of Stack

axis

public static Stack.Options axis(Long axis)

Parameters:

axis - Dimension along which to pack. Negative values wrap around, so the valid range is `[-(R+1), R+1)`.

output

public Output<T> output()

The packed tensor.

asOutput

public Output<T> asOutput()

Description copied from interface: Operand

Returns the symbolic handle of a 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.

Specified by:

asOutput in interface Operand<T>

See Also:

OperationBuilder.addInput(Output)