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tf.sort
Sorts a tensor.
tf.sort(
values, axis=-1, direction='ASCENDING', name=None
)
Usage:
a = [1, 10, 26.9, 2.8, 166.32, 62.3]
tf.sort(a).numpy()
array([ 1. , 2.8 , 10. , 26.9 , 62.3 , 166.32], dtype=float32)
tf.sort(a, direction='DESCENDING').numpy()
array([166.32, 62.3 , 26.9 , 10. , 2.8 , 1. ], dtype=float32)
For multidimensional inputs you can control which axis the sort is applied along. The default axis=-1
sorts the innermost axis.
mat = [[3,2,1],
[2,1,3],
[1,3,2]]
tf.sort(mat, axis=-1).numpy()
array([[1, 2, 3],
[1, 2, 3],
[1, 2, 3]], dtype=int32)
tf.sort(mat, axis=0).numpy()
array([[1, 1, 1],
[2, 2, 2],
[3, 3, 3]], dtype=int32)
See also:
tf.argsort
: Like sort, but it returns the sort indices.tf.math.top_k
: A partial sort that returns a fixed number of top values and corresponding indices.
Args | |
---|---|
values |
1-D or higher numeric Tensor . |
axis |
The axis along which to sort. The default is -1, which sorts the last axis. |
direction |
The direction in which to sort the values ('ASCENDING' or 'DESCENDING' ). |
name |
Optional name for the operation. |
Returns | |
---|---|
A Tensor with the same dtype and shape as values , with the elements sorted along the given axis . |
Raises | |
---|---|
tf.errors.InvalidArgumentError |
If the values.dtype is not a float or int type. |
ValueError |
If axis is not a constant scalar, or the direction is invalid. |
© 2022 The TensorFlow Authors. All rights reserved.
Licensed under the Creative Commons Attribution License 4.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.9/api_docs/python/tf/sort