numpy.isnat
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numpy.isnat(x, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj]) = <ufunc 'isnat'>
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Test element-wise for NaT (not a time) and return result as a boolean array.
New in version 1.13.0.
Parameters: -
x : array_like
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Input array with datetime or timedelta data type.
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out : ndarray, None, or tuple of ndarray and None, optional
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A location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or
None
, a freshly-allocated array is returned. A tuple (possible only as a keyword argument) must have length equal to the number of outputs. -
where : array_like, optional
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Values of True indicate to calculate the ufunc at that position, values of False indicate to leave the value in the output alone.
- **kwargs
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For other keyword-only arguments, see the ufunc docs.
Returns: -
y : ndarray or bool
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True where
x
is NaT, false otherwise. This is a scalar ifx
is a scalar.
Examples
>>> np.isnat(np.datetime64("NaT")) True >>> np.isnat(np.datetime64("2016-01-01")) False >>> np.isnat(np.array(["NaT", "2016-01-01"], dtype="datetime64[ns]")) array([ True, False])
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Licensed under the 3-clause BSD License.
https://docs.scipy.org/doc/numpy-1.16.1/reference/generated/numpy.isnat.html