Added a note about SPLIT requiring adjacent cases.

diff --git a/doc/ChangeLog b/doc/ChangeLog
index 13497e4ade9a124144dc4b15e435ccbbd898e64e..28361d832d6b4a9b9bc7c3f31ae5352f1f038cbe 100644 (file)
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,6 @@
+Fri Nov  5 17:46:46 WST 2004 John Darrington <john@darrington.wattle.id.au>
+
+       * Added a note to the about SPLIT requiring adjecent cases.
 
 Sat Oct 30 17:32:53 WST 2004 John Darrington <john@darrington.wattle.id.au>
 

diff --git a/doc/data-selection.texi b/doc/data-selection.texi
index 32914f04f966d876fa720334e765866b99ac843b..c20337ae4de8c3597d8fe0229fb75a3a61d4259d 100644 (file)
--- a/doc/data-selection.texi
+++ b/doc/data-selection.texi
@@ -222,11 +222,15 @@ file to be analyzed separately using single statistical procedure
 commands.
 
 Specify a list of variable names to analyze multiple sets of
-data separately.  Groups of cases having the same values for these
+data separately.  Groups of adjacent cases having the same values for these
 variables are analyzed by statistical procedure commands as one group.
 An independent analysis is carried out for each group of cases, and the
 variable values for the group are printed along with the analysis.
 
+Groups are formed only by @emph{adjacent} cases.  To create a split 
+using a variable where like values are not adjacent in the working file,
+you should first sort the data by that variable (@pxref{SORT CASES}).
+
 Specify OFF to disable @cmd{SPLIT FILE} and resume analysis of the
 entire active file as a single group of data.