From: John Darrington Date: Tue, 12 Oct 2010 09:03:32 +0000 (+0200) Subject: Add documentation for the Kruskal-Wallis subcommand X-Git-Tag: v0.7.6~30 X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a8f2249d969b03d1d036d46a89c5c792518fe5e;hp=758bb90bac15899ca7f18a55dc4f90e1345c7179;p=pspp-builds.git Add documentation for the Kruskal-Wallis subcommand --- diff --git a/doc/statistics.texi b/doc/statistics.texi index c475f306..be696009 100644 --- a/doc/statistics.texi +++ b/doc/statistics.texi @@ -681,6 +681,7 @@ is used. @menu * BINOMIAL:: Binomial Test * CHISQUARE:: Chisquare Test +* KRUSKAL-WALLIS:: Kruskal-Wallis Test * WILCOXON:: Wilcoxon Signed Ranks Test * SIGN:: The Sign Test @end menu @@ -762,6 +763,32 @@ sum of the frequencies need not be 1. If no /EXPECTED subcommand is given, then then equal frequencies are expected. + +@node KRUSKAL-WALLIS +@subsection Kruskal-Wallis Test +@comment node-name, next, previous, up +@vindex KRUSKAL-WALLIS +@vindex K-W +@cindex Kruskal-Wallis test + +@display + [ /KRUSKAL-WALLIS = varlist BY var (lower, upper) ] +@end display + +The Kruskal-Wallis test is used to compare data from an +arbitrary number of populations. It does not assume normality. +The data to be compared are specified by @var{varlist}. +The categorical variable determining the groups to which the +data belongs is given by @var{var}. The limits @var{lower} and +@var{upper} specify the valid range of @var{var}. Any cases for +which @var{var} falls outside [@var{lower}, @var{upper}] will be +ignored. + +The mean rank of each group as well as the chi-squared value and significance +of the test will be printed. +The abbreviated subcommand K-W may be used in place of KRUSKAL-WALLIS. + + @node WILCOXON @subsection Wilcoxon Matched Pairs Signed Ranks Test @comment node-name, next, previous, up