Computes the inverse permutation of a tensor.

tf.math.invert_permutation( x, name=None )

This operation computes the inverse of an index permutation. It takes a 1-D integer tensor `x`

, which represents the indices of a zero-based array, and swaps each value with its index position. In other words, for an output tensor `y`

and an input tensor `x`

, this operation computes the following:

`y[x[i]] = i for i in [0, 1, ..., len(x) - 1]`

The values must include 0. There can be no duplicate values or negative values.

# tensor `x` is [3, 4, 0, 2, 1] invert_permutation(x) ==> [2, 4, 3, 0, 1]

Args | |
---|---|

`x` | A `Tensor` . Must be one of the following types: `int32` , `int64` . 1-D. |

`name` | A name for the operation (optional). |

Returns | |
---|---|

A `Tensor` . Has the same type as `x` . |

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Licensed under the Creative Commons Attribution License 3.0.

Code samples licensed under the Apache 2.0 License.

https://www.tensorflow.org/versions/r2.4/api_docs/python/tf/math/invert_permutation