Function not_equal

numpy/_core/defchararray.py:96–126

Return (x1 != x2) element-wise. Unlike `numpy.not_equal`, this comparison is performed by first stripping whitespace characters from the end of the string. This behavior is provided for backward-compatibility with numarray. Parameters ---------- x1, x2 : array_like of

(x1, x2)

@array_function_dispatch(_binary_op_dispatcher)
def not_equal(x1, x2):
    """
    Return (x1 != x2) element-wise.

    Unlike `numpy.not_equal`, this comparison is performed by first
    stripping whitespace characters from the end of the string.  This
    behavior is provided for backward-compatibility with numarray.

    Parameters
    ----------
    x1, x2 : array_like of str or unicode
        Input arrays of the same shape.

    Returns
    -------
    out : ndarray
        Output array of bools.

    See Also
    --------
    equal, greater_equal, less_equal, greater, less

    Examples
    --------
    >>> import numpy as np
    >>> x1 = np.array(['a', 'b', 'c'])
    >>> np.char.not_equal(x1, 'b')
    array([ True, False,  True])

    """
    return compare_chararrays(x1, x2, '!=', True)


@array_function_dispatch(_binary_op_dispatcher)