[R] 3 little questions

[Gabor Grothendieck]

See ?cor.test
Also, 

  rowSums(outer(unique(r1),r1,"=="))

gives the number of occurrences of the elements of unique(r1)

---
Date:   Sun, 01 Feb 2004 16:53:21 -0800 
From:   Siegfried.Macho <Siegfried.Macho at unifr.ch>
To:   <r-help at stat.math.ethz.ch> 
Subject:   [R] 3 little questions 

 
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