[R] Nonparametric Effect size indices

[Martin Plöderl]

Hello!

For comparing two non-normally distributed samples, Leech (2002) suggested
to report nonparametric effect size indices, such as Vargha & Delaney's A or
Cliff's d. I tried to search the R-sites, but could not find related
procedures or packages that include nonparametric effect sizes. 
Thank you for your help!

Citation: Leech (2002). A call for greater use of nonparametric statistics.
Paper presented at the Annual Meeting of the Mid-South Educational Research
Association, Chattanooga, TN, November 6-8.

Regards, 

Martin Plöderl PhD
Suicide Prevention Research Program, Institute of Public Health
Paracelsus Private Medical University
Dept. of Suicide Prevention, University Clinic of Psychiatry and
Psychotherapy
Christian - Doppler - Klinik
Ignaz Harrerstrasse 79
A-5020 Salzburg
AUSTRIA
Phone: +43-662-4483-4345
Fax: +43-662-4483-4344
E-mail: M.Ploederl at salk.at