Dear R-users, I have the following 2 files;
A V1 V2 A 1 A 2 A 3 A 4 B 1 B 4 C 1 C 3 D 4 B V1 V2 process1 1 process2 2 process3 3 process4 4 I want to get this output C V1 V2 V3 A 1 process1 A 2 process2 A 3 process3 A 4 process4 B 1 process1 B 4 process4 C 1 process1 C 3 process3 D 4 process4 I want to compare A$V2 with B$V2, if it is the same, then append B$V1 to A. Any tips are highly appreciated. TQVM! -- Suhaila Zainudin PhD Candidate Universiti Teknologi Malaysia [[alternative HTML version deleted]] ______________________________________________ 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.