mindspore.numpy.isnan

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mindspore.numpy.isnan(x, dtype=None)[source]

Tests element-wise for NaN and return result as a boolean array.

Note

Numpy arguments out, where, casting, order, subok, signature, and extobj are not supported. Only np.float32 is currently supported.

Parameters

  • x (Tensor) – Input values.

  • dtype (mindspore.dtype, optional) – Default: None . Overrides the dtype of the output Tensor.

Returns

Tensor or scalar, true where x is NaN, false otherwise. This is a scalar if x is a scalar.

Supported Platforms:

GPU CPU

Examples

>>> import mindspore.numpy as np
>>> output = np.isnan(np.array(np.nan, np.float32))
>>> print(output)
True
>>> output = np.isnan(np.array(np.inf, np.float32))
>>> print(output)
False