You could do something like that: > x <- sample(LETTERS, 10) > x [1] "K" "N" "C" "F" "R" "E" "L" "J" "S" "Q" > all.equal(order(x), 1:length(x)) [1] "Mean relative difference: 0.5090909"
When x is a numeric vector, I usually use > any(diff(x) < 0) although I don't know whether it's more efficient. HTH, Giovanni > Date: Mon, 03 Nov 2003 16:46:34 +0000 > From: Aurora Torrente <[EMAIL PROTECTED]> > Sender: [EMAIL PROTECTED] > Organization: EBI > Precedence: list > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:0.9.4) > Gecko/20011128 Netscape6/6.2.1 > > Hi all, > I´m having some trouble when trying to compare character values (to > check if they are alphabetically ordered). Is it possible to do it in > any way? > Thanks for your help. Cheers, > > Aurora > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > > -- __________________________________________________ [ ] [ Giovanni Petris [EMAIL PROTECTED] ] [ Department of Mathematical Sciences ] [ University of Arkansas - Fayetteville, AR 72701 ] [ Ph: (479) 575-6324, 575-8630 (fax) ] [ http://definetti.uark.edu/~gpetris/ ] [__________________________________________________] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
