pandas.api.extensions.ExtensionArray._from_factorized#

classmethod ExtensionArray._from_factorized(values, original)[source]#

Reconstruct an ExtensionArray after factorization.

Parameters:

valuesndarray: An integer ndarray with the factorized values.
originalExtensionArray: 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]