At 22:02 23/11/2006, Aimin Yan wrote: >p factor have 5 levels >aa factor have 19 levels. >totally it should have 95 combinations. >but I just find there are 92 combinations. >Does anyone know how to code to find what combinations are missed?
Does which(table(p,aa) == 0, arr.ind=TRUE) do what you wanted. >Thanks, > >Aimin > > Michael Dewey http://www.aghmed.fsnet.co.uk ______________________________________________ R-help@stat.math.ethz.ch 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.
