BUG: ensure we use group sizes, not group counts, in transform (GH9697)#9699

Merged

jreback merged 1 commit intopandas-dev:masterfrom

dsm054:fix-transform-length-mismatch

Mar 23, 2015

Commits on Mar 22, 2015

BUG: ensure we use group sizes, not group counts, in transform (GH9697)
dsm054
committed