Dear Jarod, How about this?
a<- read.table(text="NAME1 NAME2 RNA mauro francesco E234 luca giuseppe E5578 luca franco E5569 maria luca E4556 maria mauro E4556 luisa mara E4755 mara luca E234 luigi veronica E234 mauro veronica E235 francesco mauro E236 mauro francesco E234 luca giuseppe E5576",sep="",header=TRUE,stringsAsFactors=FALSE) vec1<- as.character(interaction(a[,1:2],sep="_")) cbind(freq=sapply(split(a,vec1),function(x) nrow(unique(x)))) # freq #francesco_mauro 1 #luca_franco 1 #luca_giuseppe 2 #luigi_veronica 1 #luisa_mara 1 #mara_luca 1 #maria_luca 1 #maria_mauro 1 #mauro_francesco 1 #mauro_veronica 1 A.K. ----- Original Message ----- From: "jarod...@libero.it" <jarod...@libero.it> To: smartpink...@yahoo.com Cc: Sent: Tuesday, October 8, 2013 11:48 AM Subject: R: Re: R: Re: [R] Information Frequency problem calculation Dear Master, I want to count separate it is another category >----Messaggio originale---- >Da: smartpink...@yahoo.com >Data: 08/10/2013 17.30 >A: "jarod...@libero.it"<jarod...@libero.it> >Ogg: Re: R: Re: [R] Information Frequency problem calculation > >I have another doubt. If you have "francesco- mauro" (francesco in 1st column and mauro in 2nd column) and the RNA category is say E238. Would you count the sum of groups as 2 for "mauro-francesco" or do they count as separate? > > > ______________________________________________ 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.
