numpy.logical_or — NumPy v1.13 Manual (original) (raw)

numpy. logical_or(x1, x2, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, _subok=True_[, signature, _extobj_]) = <ufunc 'logical_or'>¶

Compute the truth value of x1 OR x2 element-wise.

Parameters:	x1, x2 : array_like Logical OR is applied to the elements of x1 and x2. They have to be of the same shape. out : ndarray, None, or tuple of ndarray and None, optional 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 Values of True indicate to calculate the ufunc at that position, values of False indicate to leave the value in the output alone. **kwargs For other keyword-only arguments, see theufunc docs.
Returns:	y : ndarray or bool Boolean result with the same shape as x1 and x2 of the logical OR operation on elements of x1 and x2.

Parameters:

x1, x2 : array_like Logical OR is applied to the elements of x1 and x2. They have to be of the same shape. out : ndarray, None, or tuple of ndarray and None, optional 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 Values of True indicate to calculate the ufunc at that position, values of False indicate to leave the value in the output alone. **kwargs For other keyword-only arguments, see theufunc docs.

Returns:

y : ndarray or bool Boolean result with the same shape as x1 and x2 of the logical OR operation on elements of x1 and x2.

Examples

np.logical_or(True, False) True np.logical_or([True, False], [False, False]) array([ True, False], dtype=bool)

x = np.arange(5) np.logical_or(x < 1, x > 3) array([ True, False, False, False, True], dtype=bool)