[S] distribution-free tests for dispersion

S. Raessler (Susanne.Raessler@wiso.uni-erlangen.de)
Thu, 26 Mar 1998 11:22:26 +0200


Dear S-People,

does anyone have some S-Plus-functions of test statistics which could
be used, when the assumption of normal distribution is invalid and a
test of identical variances shall be performed. Unfortunately our
distributions observed are well skewed to the right. Thus we are
searching for tests for dispersion in the two-sample case such like
the Siegel-Tukey, Mood, Ansary-Bradley, Moses or similar ones.

Can anyone help?

Susanne

--------------------
Dr. Susanne Raessler
Universitaet Erlangen-Nuernberg
Lehrstuhl fuer Statistik und Oekonometrie
Lange Gasse 20
D-90403 Nuernberg
Tel.: (+49) 0911/5302/276 (Fax /277)
susanne.raessler@wiso.uni-erlangen.de
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