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mindspore.Tensor.masked_select

Tensor.masked_select(mask) → Tensor

Returns a new 1-D Tensor which indexes self according to the boolean mask. The shapes of mask and self don't need to match, but they must be broadcastable.

Parameters

mask (Tensor[bool]) – The shape of tensor is $(x_1,x_2,...,x_R)$.

Returns

A 1-D Tensor, with the same type as self.

Raises

• TypeError – If mask is not a Tensor.

• TypeError – If dtype of mask is not bool.

Supported Platforms:

Ascend GPU CPU

Examples

>>> import numpy as np
>>> import mindspore
>>> from mindspore import Tensor
>>> x = Tensor(np.array([1, 2, 3, 4]), mindspore.int64)
>>> mask = Tensor(np.array([1, 0, 1, 0]), mindspore.bool_)
>>> output = x.masked_select(mask)
>>> print(output)
[1 3]