Dear group, I have two data.frames X and Y identical except for values. > X gene fc A1CF -0.10050677 A2BP1 -2.03093217 A2M -0.09092704 A4GALT 0.04124563 A4GNT -0.10336042
> Y gene fc A1CF -0.085709770 A2BP1 1.058642812 A2M 0.142530426 A4GALT 0.009463123 A4GNT -0.057584059 I am interested in finding A2BP1 that is negative in X and positive in Y. How could I search for reverse values. thank you. -Ad ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.