File: errors.py

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python-spectral 0.22.4-1
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from __future__ import absolute_import, division, print_function, unicode_literals

import numpy as np

class SpyException(Exception):
    '''Base class for spectral module-specific exceptions.'''
    pass

class NaNValueWarning(UserWarning):
    pass

class NaNValueError(ValueError):
    pass

def has_nan(X):
    '''returns True if ndarray `X` contains a NaN value.'''
    return bool(np.isnan(np.min(X)))