pandas.Index.where

Index.where(cond, other=None) [source]

New in version 0.19.0.

Return an Index of same shape as self and whose corresponding entries are from self where cond is True and otherwise are from other.

Parameters:
cond : boolean array-like with the same length as self
other : scalar, or array-like

© 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/0.23.4/generated/pandas.Index.where.html