By looking at your output, it didn't change the order of the levels. (This is symptomatic for how difficult it is to change levels in R in any automatic way).
On Sun, Jul 22, 2012 at 7:31 PM, arun <smartpink...@yahoo.com> wrote: > Hi, > > Not sure if this helps or not. > > with(InsectSprays, spray[order(count)]) > [1] C C C C C C E E C C D E C C D D E E E E C D D E D D D D D E E D E E A B > C F > [39] A A F B B F A D A B F F A A A B F F B F A B B B B A A B B F A F F F > Levels: A B C D E F >> with(InsectSprays, spray[rev(order(count))]) > [1] F F F A F B B A A B B B B A F B F F B A A A F F B A D A F B B F A A F C > B A > [39] E E D E E D D D D D E D D C E E E E D D C C E D C C E E C C C C C C > Levels: A B C D E F > A.K. > > > > > > > ----- Original Message ----- > From: Sverre Stausland <john...@fas.harvard.edu> > To: arun <smartpink...@yahoo.com> > Cc: R help <r-help@r-project.org> > Sent: Sunday, July 22, 2012 1:10 PM > Subject: Re: [R] Reorder in decreasing order > > Not quite. It still orders the values in an increasing order, you've > just changed the values here. I'm using reorder() to prepare for > plotting the values, so I can't change the values. > > On Sun, Jul 22, 2012 at 6:51 PM, arun <smartpink...@yahoo.com> wrote: >> Hi, >> >> I hope this is what you are looking for. >> >> >> bymean1<-with(InsectSprays,reorder(spray,count,mean)) >>> bymean1 >> [1] A A A A A A A A A A A A B B B B B B B B B B B B C C C C C C C C C C C C >> D D >> [39] D D D D D D D D D D E E E E E E E E E E E E F F F F F F F F F F F F >> attr(,"scores") >> A B C D E F >> 14.500000 15.333333 2.083333 4.916667 3.500000 16.666667 >> #################### >> >> Levels: C E D A B F >> >> ##################### >> >> bymean2<-with(InsectSprays,reorder(spray,count,function(x) -mean(x))) >> bymean2 >> [1] A A A A A A A A A A A A B B B B B B B B B B B B C C C C C C C C C C C C >> D D >> [39] D D D D D D D D D D E E E E E E E E E E E E F F F F F F F F F F F F >> attr(,"scores") >> A B C D E F >> -14.500000 -15.333333 -2.083333 -4.916667 -3.500000 -16.666667 >> #################### >> Levels: F B A D E C >> ####################### >> >> A.K. >> >> >> >> ----- Original Message ----- >> From: Sverre Stausland <john...@fas.harvard.edu> >> To: r-help@r-project.org >> Cc: >> Sent: Sunday, July 22, 2012 12:27 PM >> Subject: [R] Reorder in decreasing order >> >> reorder() is probably the best way to order the levels in a vector >> without manually specifying the order. But reorder() orders by default >> in an increasing order: "The levels are ordered such that the values >> returned by ‘FUN’ are in increasing order." >> >> Is there a way to do what reorder() does, but order the levels >> according to a _decreasing_ order of the values? >> >> Sverre >> >> ______________________________________________ >> 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.
