Whoops! I think that should be Stuetzle --- though I very much doubt that he reads the list.
Mark Difford wrote: > > Hi Amin, > >>> First, does R have a package that can implement the multimodality test, >>> e.g., the Silverman test, DIP test, MAP test or Runt test. > > Jeremy Tantrum (a Ph.D. student of Werner Steutzle's, c. 2003/04) did some > work on this. There is some useful code on Steutzle's website: > > http://www.stat.washington.edu/wxs/Stat593-s03/Code/jeremy-unimodality.R > > I used it last year when I was trying to solve the problem of how best to > compare lots of density curves (age distributions of 3 spp. of tree > euphorbias from about very different 35 sites). In particular I had to > ensure that I wasn't creating spurious bimodality at a particular age > range when combining sites. > > You might find it useful. Feel free to contact me off list if the code has > gone, as I think I still have it (somewhere). > > Regards, Mark. > > > Amin W. Mugera wrote: >> >> >> Dear Readers: >> >> I have two issues in nonparametric statistical analysis that i need >> help: >> >> First, does R have a package that can implement the multimodality test, >> e.g., the Silverman test, DIP test, MAP test or Runt test. I have seen >> an earlier thread (sometime in 2003) where someone was trying to write >> a code for the Silverman test of multimodality. Is there any other >> tests that can enable me to know how many modes are in a distribution? >> >> Second, i would like to test whether two distributions are equal. Does R >> have a package than can implement the Li (1996) test of the equality >> of two distributions? Is there any other test i can use rather than the >> Li test? >> >> Thank you in advance for your help. >> >> Amin Mugera >> Graduate Student >> AgEcon Dept. Kansas State University >> >> ______________________________________________ >> 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. >> >> > > -- View this message in context: http://www.nabble.com/Modality-Test-tp19396085p19400138.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
