dpnp.isnan

dpnp.isnan(x, /, out=None, *, where=True, order='K', dtype=None, subok=True, **kwargs)

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

For full documentation refer to numpy.isnan.

Limitations

Parameters x is only supported as either dpnp.ndarray or dpctl.tensor.usm_ndarray. Parameters where, dtype and subok are supported with their default values. Otherwise the function will be executed sequentially on CPU. Input array data types are limited by supported DPNP Data types.

See also

dpnp.isinf

Test element-wise for positive or negative infinity.

dpnp.isneginf

Test element-wise for negative infinity, return result as bool array.

dpnp.isposinf

Test element-wise for positive infinity, return result as bool array.

dpnp.isfinite

Test element-wise for finiteness.

dpnp.isnat

Test element-wise for NaT (not a time) and return result as a boolean array.

Examples

>>> import dpnp as np
>>> x = np.array([np.inf, 0., np.nan])
>>> np.isnan(x)
array([False, False,  True])