[R] Modality Test

Amin W. Mugera mugeraam at ksu.edu
Tue Sep 9 18:23:50 CEST 2008


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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