[Numpy-discussion] ENH: add a 'return_counts=' keyword argument to `np.unique`

Hi, I have just sent a PR, adding a `return_counts` keyword argument to `np.unique` that does exactly what the name suggests: counting the number of times each unique time comes up in the array. It reuses the `flag` array that is constructed whenever any optional index is requested, extracts the indices of the `True`s in it, and returns their diff. You can check it here: https://github.com/numpy/numpy/pull/4180 Regards, Jaime -- (\__/) ( O.o) ( > <) Este es Conejo. Copia a Conejo en tu firma y ayúdale en sus planes de dominación mundial.