Re: [R] Sorting dataframe by number of occurrences of factor

That's great - thanks all for your help.-- View this message in context: http://r.789695.n4.nabble.com/Sorting-dataframe-by-number-of-occurrences-of-factor-tp3485443p3488978.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-proj

Re: [R] Sorting dataframe by number of occurrences of factor

to the first two lines of your solutions df<-data.frame(id=c(1:20),name=c('a','b','b','c','a','d','b','e', 'd','d','c','a','b','a','a','b','f','b','c','g')) freq <- ave(rep(1, times=nrow(df)), df$name, FUN=sum) I would add: df[ sort.list(freq), ] __

Re: [R] Sorting dataframe by number of occurrences of factor

df<-data.frame(id=c(1:20),name=c('a','b','b','c','a','d','b','e','d','d','c','a','b','a','a','b','f','b','c','g')) freq <- ave(rep(1, times=nrow(df)), df$name, FUN=sum) rowSums(table(df$name,freq)) -- View this message in context: http://r.789695.n4.nabble.com/Sorting-dataframe-by-number-of-occ

Re: [R] Sorting dataframe by number of occurrences of factor

On Fri, Apr 29, 2011 at 11:17:58PM -0700, adigs wrote: > Apologies for what's probably quite simple, but I'm having some problems with > sorting a data frame by the number of occurences of each level of a factor. > > df<-data.frame(id=c(1:20),name=c('a','b','b','c','a','d','b','e','d','d','c','a',