Hi, I have 4 files with 10000 individuals in each file and 10 columns each. One of the columns, say C1, may have elements in common with the other columns C1 of other files.
If I have only 2 files, I can do this check with the command: data1[data1 %in% data2] data2[data2 %in% data1] How do I check which common elements in the columns of C1 4 files? Thanks, --------------------------------------------- Silvano Cesar da Costa Universidade Estadual de Londrina Centro de Ciências Exatas Departamento de EstatÃstica Fone: (43) 3371-4346 ______________________________________________ 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.
