union1d(ar1, ar2)
This docstring was copied from numpy.union1d.
Some inconsistencies with the Dask version may exist.
Return the unique, sorted array of values that are in either of the two input arrays.
Input arrays. They are flattened if they are not already 1D.
Unique, sorted union of the input arrays.
Find the union of two arrays.
numpy.lib.arraysetops
Module with a number of other functions for performing set operations on arrays.
>>> np.union1d([-1, 0, 1], [-2, 0, 2]) # doctest: +SKIP array([-2, -1, 0, 1, 2])
To find the union of more than two arrays, use functools.reduce:
This example is valid syntax, but we were not able to check execution>>> from functools import reduce # doctest: +SKIPSee :
... reduce(np.union1d, ([1, 3, 4, 3], [3, 1, 2, 1], [6, 3, 4, 2])) # doctest: +SKIP array([1, 2, 3, 4, 6])
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