pandas.Index.factorize

Index.factorize(sort=False, na_sentinel=-1) [source]

Encode the object as an enumerated type or categorical variable

Parameters:

sort : boolean, default False

Sort by values

na_sentinel: int, default -1

Value to mark “not found”

Returns:

labels : the indexer to the original array

uniques : the unique Index

© 2008–2012, AQR Capital Management, LLC, Lambda Foundry, Inc. and PyData Development Team
Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.21.1/generated/pandas.Index.factorize.html