?reorder Try:
> newstate <- reorder(state,state, length) Or > newstate <- reorder(state,state, function(x) -length(x) ) Hope this helps, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] (801) 408-8111 > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Shoaaib Mehmood > Sent: Friday, November 16, 2007 3:22 AM > To: [EMAIL PROTECTED]; r-help@r-project.org > Subject: [R] sorting factor levels by data frequency of levels > > using an example from r online help > > > state <- c("tas", "sa", "qld", "nsw", "nsw", "nt", "wa", "wa", > "qld", "vic", "nsw", "vic", "qld", "qld", "sa", "tas", > "sa", "nt", "wa", "vic", "qld", "nsw", "nsw", "wa", > "sa", "act", "nsw", "vic", "vic", "act") > >statefac<-factor(state) > > now if i use levels function to print factor levels they are > shown sorted by alphabetical order. the output is shown below > > >levels(statefac) > [1] "act" "nsw" "nt" "qld" "sa" "tas" "vic" "wa" > > I WANT THE FACTOR LEVELS TO BE SORTED IN ORDER OF DESCENDING > DATA FREQUENCY IN EACH LEVEL. IN OTHER WORDS I WANT THE LEVEL > WHICH HAS THE HIGHEST FREQUENCY IN STATE TO APPEAR FIRST, > FOLLOWED BY ONE WHICH HAS THE SECOND HIGHEST FREQUENCY AND SO ON. > > Any help will be appreciated > > > -- > Regards, > Rana Shoaaib Mehmood > > ______________________________________________ > 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. > ______________________________________________ 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.
