`numpy:unique_all`

Signature

def unique_all ( x )

Find the unique elements of an array, and counts, inverse, and indices.

This function is an Array API compatible alternative to

np.unique(x, return_index=True, return_inverse=True,
          return_counts=True, equal_nan=False, sorted=False)

but returns a namedtuple for easier access to each output.

x : array_like: Input array. It will be flattened if it is not already 1-D.

out : namedtuple

The result containing:

values - The unique elements of an input array.
indices - The first occurring indices for each unique element.
inverse_indices - The indices from the set of unique elements that reconstruct x.
counts - The corresponding counts for each unique element.

import numpy as np
x = [1, 1, 2]
uniq = np.unique_all(x)
uniq.values
uniq.indices
uniq.inverse_indices
uniq.counts