Re: [R] tabulation on dataframe question

If d is your dataframe, how about ind <- d$Dist == 2 aggregate(d,by=list(d$NameA,dNameA),FUN=length) Regards, Moshe. --- Karin Lagesen <[EMAIL PROTECTED]> wrote: > > I have a data frame with data similar to this: > > NameA GrpA NameB GrpB Dist > A Alpha B Alpha 0.2 > A

Re: [R] tabulation on dataframe question

Try this: with(x, {tmp <- table(x[Dist==0.2,c('GrpA', 'GrpB')]) tmp[lower.tri(tmp)] <- tmp[upper.tri(tmp)] tmp}) On 18/02/2008, Karin Lagesen <[EMAIL PROTECTED]> wrote: > > I have a data frame with data similar to this: > > NameA GrpA NameB GrpB Dist > A Alpha B Alpha

Re: [R] tabulation on dataframe question

Try this: # read test data Lines <- "NameA GrpA NameB GrpB Dist A Alpha B Alpha 0.2 A Alpha C Beta0.2 A Alpha D Beta0.4 B Alpha C Beta0.2 B Alpha D Beta0.1 C Beta D Beta0.3 " DF <- read.ta