numpy.unique_inverse#
- numpy.unique_inverse(x)[source]#
Find the unique elements of x and indices to reconstruct x.
This function is Array API compatible alternative to:
>>> x = np.array([1, 1, 2]) >>> np.unique(x, return_inverse=True, equal_nan=False) (array([1, 2]), array([0, 0, 1]))
- Parameters:
- xarray_like
Input array. It will be flattened if it is not already 1-D.
- Returns:
- outnamedtuple
The result containing:
values - The unique elements of an input array.
inverse_indices - The indices from the set of unique elements that reconstruct x.
See also
unique
Find the unique elements of an array.