BUG: rolling.cov with multi-index columns should preseve the MI#16825
Merged
jreback merged 1 commit intopandas-dev:masterfrom Jul 4, 2017
Merged
BUG: rolling.cov with multi-index columns should preseve the MI#16825jreback merged 1 commit intopandas-dev:masterfrom
jreback merged 1 commit intopandas-dev:masterfrom
