From: John Darrington <john@darrington.wattle.id.au>
Date: Sun, 4 Oct 2009 14:06:14 +0000 (+0200)
Subject: CORRELATIONS: Documented the /STATISTICS subcommand
X-Git-Tag: fc11-x64-build11~2
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?p=pspp-builds.git;a=commitdiff_plain;h=58e00a3068cffe79b28c195b58841edb617d995e

CORRELATIONS: Documented the /STATISTICS subcommand
---

diff --git a/doc/statistics.texi b/doc/statistics.texi
index 01cd52d5..63e8f35a 100644
--- a/doc/statistics.texi
+++ b/doc/statistics.texi
@@ -318,6 +318,7 @@ CORRELATIONS
      ]
 
      [ /PRINT=@{TWOTAIL, ONETAIL@} @{SIG, NOSIG@} ]
+     [ /STATISTICS=DESCRIPTIVES XPROD ALL]
      [ /MISSING=@{PAIRWISE, LISTWISE@} @{INCLUDE, EXCLUDE@} ]
 @end display    
 
@@ -355,7 +356,15 @@ If the NOSIG option is specified, then correlation coefficients with significanc
 0.05 are highlighted.
 If SIG is specified, then no highlighting is performed.  This is the default.
 
-
+@cindex covariance
+The STATISTICS subcommand requests additional statistics to be displayed.  The keyword 
+DESCRIPTIVES requests that the mean, number of non-missing cases, and the non-biased
+estimator of the standard deviation are displayed.
+These statistics will be displayed in a separated table, for all the variables listed
+in any /VARIABLES subcommand.
+The XPROD keyword requests cross-product deviations and covariance estimators to 
+be displayed for each pair of variables.
+The keyword ALL is the union of DESCRIPTIVES and XPROD.
 
 @node CROSSTABS
 @section CROSSTABS