pandas.api.extensions.ExtensionArray._from_factorized

classmethodExtensionArray._from_factorized(values, original)[source]

Reconstruct an ExtensionArray after factorization.

Parameters:

values:ndarray

An integer ndarray with the factorized values.

original:ExtensionArray

The original ExtensionArray that factorize was called on.

See also

factorize

Top-level factorize method that dispatches here.

ExtensionArray.factorize

Encode the extension array as an enumerated type.

Examples

>>> interv_arr = pd.arrays.IntervalArray([pd.Interval(0, 1),
...                                      pd.Interval(1, 5), pd.Interval(1, 5)])
>>> codes, uniques = pd.factorize(interv_arr)
>>> pd.arrays.IntervalArray._from_factorized(uniques, interv_arr)
<IntervalArray>
[(0, 1], (1, 5]]
Length: 2, dtype: interval[int64, right]