Stack

public final class Stack

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 Classes

class

Stack.Options

Optional attributes for Stack

Constants

String

OP_NAME

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

Public Methods

Output<T>	asOutput() Returns the symbolic handle of the tensor.
static Stack.Options	axis(Long axis)
static <T extends TType> Stack<T>	create(Scope scope, Iterable<Operand<T>> values, Options... options) Factory method to create a class wrapping a new Stack operation.
Output<T>	output() The packed tensor.

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<T>	asOutput() Returns the symbolic handle of the tensor.
abstract T	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<T>	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: "Pack"

Public Methods

public Output<T> 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 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)`.

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

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

Parameters

scope	current scope
values	Must be of same shape and type.
options	carries optional attributes values

Returns

• a new instance of Stack

public Output<T> output ()

The packed tensor.