[R] 3 little questions

[Siegfried.Macho]

Dear R-helpers,

3 questions:
1. Is there a package that contains a routine for computing Kendall's W 
(coefficient of concordance), with and without ties ?
2. Is there a package that contains a routine for computing Goodman' s Gamma.
3. I there a simple method for computing the number of ties as well as 
their lengths within a vector fo ranks,
e.g.
 >r1 <- rank(c(1, 3, 2, 3, 3, 2, 4))

gives:

[1] 1.0 5.0 2.5 5.0 5.0 2.5 7.0

which contains 2 ties with length 2 and 3.

Thanks in advance,
S.M


==============================================
Dr. Siegfried Macho
Department of Psychology
University of Fribourg
Rue de Faucigny 2
CH-1700 Fribourg

Tel.: +41-26-3007635
Fax.: +41-26-3009712
http://www.unifr.ch/psycho/general/macho.htm