Filter by substring

R:

mtcars %>% filter(grepl('RX', rowname))

Actually a regexps-match.

pandas::
mtcars[mtcars.name.str.contains(‘RX’)]

plydata:

mtcars >> dp.query("name.str.contains('RX')")

dplython:

dp.DplyFrame(mtcars) >> dp.sift(X.name.str.contains('RX'))

dfply:

mtcars >>dp.filter_by(X.name.str.contains('RX'))

dppd:

dp(mtcars).filter_by(X.name.str.contains('RX')).pd