mindspore.Tensor.itemset

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Tensor.itemset(*args)[source]

Insert scalar into a tensor (scalar is cast to tensor’s dtype, if possible).

There must be at least 1 argument, and define the last argument as item. Then, tensor.itemset(*args) is equivalent to \(Tensor[args] = item\).

Parameters

args (Union[(numbers.Number), (int/tuple(int), numbers.Number)]) – The arguments that specify the index and value. If args contain one argument (a scalar), it is only used in case tensor is of size 1. If args contain two arguments, the last argument is the value to be set and must be a scalar, the first argument specifies a single tensor element location. It is either an int or a tuple.

Returns

A new tensor that doesn’t affect the original tensor, with value set by \(Tensor[args] = item\).

Raises

  • ValueError – If the length of the first argument is not equal to self.ndim.

  • IndexError – If only one argument is provided, and the original Tensor is not scalar.

Supported Platforms:

Ascend GPU CPU

Examples

>>> import numpy as np
>>> from mindspore import Tensor
>>> x = Tensor(np.array([[1,2,3],[4,5,6]], dtype=np.float32))
>>> print(x.itemset((0,1), 4))
[[1. 4. 3.]
[4. 5. 6.]]
>>> print(x)
[[1. 2. 3.]
[4. 5. 6.]]