BUG: Better handling of invalid na_option argument for groupby.rank#22125

Merged

jreback merged 1 commit intopandas-dev:masterfrom peterpanmj:na_option_handle

Aug 1, 2018

+40-26

Commits on Aug 1, 2018

BUG: Better handling of invalid na_option argument for groupby.rank(pandas-dev#22124 )
peterpanmj
committed