Is it possible? I am expecting the result to be the second row of the data frame ... d<-data.frame(a=1:3, b=3:5,c=9:11) > d a b c 1 1 3 9 2 2 4 10 3 3 5 11 > d[identical(d[c("b","c")],c(4,10)),] [1] a b c <0 rows> (or 0-length row.names) [[alternative HTML version deleted]]