public final class
Shape
The possibly partially known shape of a tensor produced by an operation.
Public Methods
| boolean |
equals(Object obj)
|
| int |
hashCode()
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| static Shape |
make(long firstDimensionSize, long... otherDimensionSizes)
Create a Shape representing an N-dimensional value.
|
| int |
numDimensions()
Number of dimensions represented by this shape.
|
| static Shape |
scalar()
Create a Shape representing a scalar value.
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| long |
size(int i)
The size of the i-th dimension.
|
| String |
toString()
Succinct description of the shape meant for debugging.
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| static Shape |
unknown()
Create a Shape representing an unknown number of dimensions.
|
Inherited Methods
Public Methods
public boolean equals (Object obj)
public int hashCode ()
public static Shape make (long firstDimensionSize, long... otherDimensionSizes)
Create a Shape representing an N-dimensional value.
Creates a Shape representing an N-dimensional value (N being at least 1), with the provided size for each dimension. A -1 indicates that the size of the corresponding dimension is unknown. For example:
// A 2-element vector.
Shape vector = Shape.create(2);
// A 2x3 matrix.
Shape matrix = Shape.create(2, 3);
// A matrix with 4 columns but an unknown number of rows.
// This is typically used to indicate the shape of tensors that represent
// a variable-sized batch of values. The Shape below might represent a
// variable-sized batch of 4-element vectors.
Shape batch = Shape.create(-1, 4);
public int numDimensions ()
Number of dimensions represented by this shape.
Returns
- -1 if the number of dimensions is unknown, 0 if the shape represents a scalar, 1 for a vector, 2 for a matrix etc.
public long size (int i)
The size of the i-th dimension.
Returns
- The size of the requested dimension or -1 if it is unknown.
public String toString ()
Succinct description of the shape meant for debugging.