Message-ID: <39B6DDB9048D0F4DAD42CB26AAFF0AFA076E0F@usctmx1106.merck.com>
Date: 2005-04-19T16:35:43Z
From: Liaw, Andy
Subject: Ranking within a classification variable.
> From: Rolf Turner
>
> In response to my question Andy Liaw wrote:
>
> > Here's one way:
>
> <snip>
>
> > > dat$rank <- with(dat, ave(x, f, FUN=rank))
>
> <snip>
>
> > Don't know how this rates on the slick-quick-sexy scale...
>
> Thanks Andy. That's definitely a 10 on the slick-quick-sexy scale.
> I (blush!) didn't know about ``ave()''.
All credits should go to the author of ave(). I didn't know about it either
until I saw it on R-help a while ago.
Cheers,
Andy
> cheers,
>
> Rolf
>
>
>