[R] alternate rank method
dgrove at fhcrc.org
Tue Jun 29 18:04:47 CEST 2004
I agree. These are obvious extensions to the options provided
now by rank. I didn't suggest this as I am not a contributor and
don't feel comfortable asking others to do more work :)
On Tue, 29 Jun 2004, Martin Maechler wrote:
> >>>>> "Torsten" == Torsten Hothorn <Torsten.Hothorn at rzmail.uni-erlangen.de>
> >>>>> on Mon, 28 Jun 2004 10:59:26 +0200 (CEST) writes:
> Torsten> On Fri, 25 Jun 2004, Douglas Grove wrote:
> >> I should have specified an additional constraint:
> >> I'm going to need to use this repeatedly on large vectors
> >> (length 10^6), so something efficient is needed.
> Torsten> give function `irank' in package `exactRankTests' a
> Torsten> try.
> As an answer to Torsten (who got it already orally) and Gabor's
> original tricky suggestions:
> I strongly believe this should happen in the same C code on
> which R's base rank() function works and already implements the
> *averaging* of ties.
> Doing the analog of changing "average(..)" to min(..) or max(..)
> shouldn't be hard and certainly will be more efficient than the
> "workarounds" posted here.
> Patches welcome...
> since otherwise I'm not sure I'll get there in time.
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