From 8a8f2249d969b03d1d036d46a89c5c792518fe5e Mon Sep 17 00:00:00 2001
From: John Darrington <john@darrington.wattle.id.au>
Date: Tue, 12 Oct 2010 11:03:32 +0200
Subject: [PATCH] Add documentation for the Kruskal-Wallis subcommand
---
doc/statistics.texi | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/doc/statistics.texi b/doc/statistics.texi
index c475f306b3..be696009e4 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
--
2.30.2