Implemented the /RUNS subcommand for NPAR TESTS.

[pspp] / doc / statistics.texi

diff --git a/doc/statistics.texi b/doc/statistics.texi
index be696009e4249ddc1f80eded72921e08e4b51502..0cb7f70fe84e59d662bee2bbb220a15822e48038 100644 (file)
--- a/doc/statistics.texi
+++ b/doc/statistics.texi
@@ -683,6 +683,7 @@ is used.
 * CHISQUARE::               Chisquare Test
 * KRUSKAL-WALLIS::          Kruskal-Wallis Test
 * WILCOXON::                Wilcoxon Signed Ranks Test
+* RUNS::                    Runs Test
 * SIGN::                    The Sign Test
 @end menu
 
@@ -816,6 +817,25 @@ If the @code{WITH} keyword is given, but the
 of variable preceding @code{WITH} against variable following
 @code{WITH} are performed.
 
+@node RUNS
+@subsection Runs Test
+@vindex RUNS
+@cindex runs test
+
+@display 
+     [ /RUNS (@{MEAN, MEDIAN, MODE, value@}) varlist ]
+@end display
+
+The /RUNS subcommand tests whether a data sequence is randomly ordered.
+
+It works by examining the number of times a variable's value crosses a given threshold. 
+The desired threshold must be specified within parentheses.
+It may either be specified as a number or as one of MEAN, MEDIAN or MODE.
+Following the threshold specification comes the list of variables whose values are to be
+tested.
+
+The subcommand shows the number of runs, the asymptotic significance based on the
+length of the data.
 
 @node SIGN
 @subsection Sign Test