[R] Modality Test

roger koenker rkoenker at uiuc.edu
Tue Sep 9 21:27:24 CEST 2008

the diptest package, perhaps?

url:    www.econ.uiuc.edu/~roger            Roger Koenker
email    rkoenker at uiuc.edu            Department of Economics
vox:     217-333-4558                University of Illinois
fax:       217-244-6678                Champaign, IL 61820

On Sep 9, 2008, at 11:23 AM, 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
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