[R] unimodality test
maechler at stat.math.ethz.ch
Mon Jul 14 12:17:43 CEST 2003
replying to my own posting of last Friday:
>>>>> "MM" == Martin Maechler <maechler at stat.math.ethz.ch> writes:
>>>>> "Jerome" == Jerome Sackur <sackur at heraclite.ens.fr>
>>>>> on Fri, 11 Jul 2003 12:17:33 +0200 (MET DST) writes:
Jerome> Dear R users, I am interested in uni- bi-
Jerome> multimodality tests, for analysing reaction times
Jerome> data. I was lead to Hartigan's dip test
Jerome> (Ann. Statistics, 13, 1985, pp. 70-84, Applied
Jerome> Statistics, 34, 1985, 320-325). Not being a
Jerome> programmer I am unable to translate the Fortran code
Jerome> given in ref. 2 into a R function. I'd be glad to
Jerome> learn that someone already did it, or has devised a
Jerome> better solution for this kind of problem..
MM> I had got a version with Fortran and S-plus from Dario
MM> Ringach (@ NYU.edu) in 1994 (from what I see) and had
MM> worked on it in 2000, made it into an R package back then.
MM> The reason it hasn't made its way to CRAN was
MM> that the Fortran code (which I f2c'ed to C) still has
MM> bugs (leading to segmentation faults) that I've not yet
MM> found time to debug.
not quite true.
MM> Let me have a look at it before making it available <....>
I've put a new source package diptest (0.9-1) on CRAN's incoming.
For the interested ones, there's a version of it also available
(yes, only for those who can install packages from source!)
Note that because of vacation and conferences, it may take a
bit longer before this will be available from CRAN and its mirrors
(and even a bit longer before "pre-compiled" availability for Windows).
Martin Maechler <maechler at stat.math.ethz.ch> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO C16 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
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