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Transposes a
.
tf.compat.v2.transpose(
a, perm=None, conjugate=False, name='transpose'
)
Permutes the dimensions according to perm
.
The returned tensor's dimension i will correspond to the input dimension
perm[i]
. If perm
is not given, it is set to (n-1...0), where n is
the rank of the input tensor. Hence by default, this operation performs a
regular matrix transpose on 2-D input Tensors. If conjugate is True and
a.dtype
is either complex64
or complex128
then the values of a
are conjugated and transposed.
For example:
x = tf.constant([[1, 2, 3], [4, 5, 6]])
tf.transpose(x) # [[1, 4]
# [2, 5]
# [3, 6]]
# Equivalently
tf.transpose(x, perm=[1, 0]) # [[1, 4]
# [2, 5]
# [3, 6]]
# If x is complex, setting conjugate=True gives the conjugate transpose
x = tf.constant([[1 + 1j, 2 + 2j, 3 + 3j],
[4 + 4j, 5 + 5j, 6 + 6j]])
tf.transpose(x, conjugate=True) # [[1 - 1j, 4 - 4j],
# [2 - 2j, 5 - 5j],
# [3 - 3j, 6 - 6j]]
# 'perm' is more useful for n-dimensional tensors, for n > 2
x = tf.constant([[[ 1, 2, 3],
[ 4, 5, 6]],
[[ 7, 8, 9],
[10, 11, 12]]])
# Take the transpose of the matrices in dimension-0
# (this common operation has a shorthand `linalg.matrix_transpose`)
tf.transpose(x, perm=[0, 2, 1]) # [[[1, 4],
# [2, 5],
# [3, 6]],
# [[7, 10],
# [8, 11],
# [9, 12]]]
Args | |
---|---|
a
|
A Tensor .
|
perm
|
A permutation of the dimensions of a .
|
conjugate
|
Optional bool. Setting it to True is mathematically equivalent
to tf.math.conj(tf.transpose(input)).
|
name
|
A name for the operation (optional). |
Returns | |
---|---|
A transposed Tensor .
|
Numpy Compatibility
In numpy
transposes are memory-efficient constant time operations as they
simply return a new view of the same data with adjusted strides
.
TensorFlow does not support strides, so transpose
returns a new tensor with
the items permuted.