NumPy

numpy.setxor1d

numpy.setxor1d(ar1, ar2, assume_unique=False)[source]

Find the set exclusive-or of two arrays.

Return the sorted, unique values that are in only one (not both) of the input arrays.

Parameters
ar1, ar2array_like

Input arrays.

assume_uniquebool

If True, the input arrays are both assumed to be unique, which can speed up the calculation. Default is False.

Returns
setxor1dndarray

Sorted 1D array of unique values that are in only one of the input arrays.

Examples

>>> a = np.array([1, 2, 3, 2, 4])
>>> b = np.array([2, 3, 5, 7, 5])
>>> np.setxor1d(a,b)
array([1, 4, 5, 7])

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