initial version of autocovariance function

[pspp-builds.git] / doc / statistics.texi

diff --git a/doc/statistics.texi b/doc/statistics.texi
index 19fe6d5abcab12f21db907760203f97999fda7b8..2cb79d23e49d7e7d81585cdabb2df944e0284d7e 100644 (file)
--- a/doc/statistics.texi
+++ b/doc/statistics.texi
@@ -14,6 +14,7 @@ far.
 * CROSSTABS::                   Crosstabulation tables.
 * T-TEST::                      Test hypotheses about means.
 * ONEWAY::                      One way analysis of variance.
+* REGRESSION::                  Linear regression.
 @end menu
 
 @node DESCRIPTIVES, FREQUENCIES, Statistics, Statistics
@@ -230,6 +231,7 @@ EXAMINE
         /COMPARE=@{GROUPS,VARIABLES@}
         /ID=@{case_number, var_name@}
         /@{TOTAL,NOTOTAL@}
+        /PERCENTILE=[value_list]=@{HAVERAGE, WAVERAGE, ROUND, AEMPIRICAL, EMPIRICAL @}
         /MISSING=@{LISTWISE, PAIRWISE@} [@{EXCLUDE, INCLUDE@}] 
                [@{NOREPORT,REPORT@}]
 
@@ -258,9 +260,23 @@ how many upper and lower extremes to show.  The default number is 5.
 
 The PLOT subcommand specifies which plots are to be produced if any.
 
+The COMPARE subcommand is only relevant if producing boxplots, and it is only 
+useful there is more than one dependent variable and at least one factor.   If 
+/COMPARE=GROUPS is specified, then one plot per dependent variable is produced,
+containing boxplots for all the factors.
+If /COMPARE=VARIABLES is specified, then one plot per factor is produced, each 
+each containing one boxplot per dependent variable.
+If the /COMPARE subcommand is ommitted, then PSPP uses the default value of 
+/COMPARE=GROUPS.
+
 The CINTERVAL subcommand specifies the confidence interval to use in
 calculation of the descriptives command.  The default it 95%.
 
+The PERCENTILES subcommand specifies which percentiles are to be calculated, 
+and which algorithm to use for calculating them.  The default is to
+calculate the 5, 10, 25, 50, 75, 90, 95 percentiles using the
+HAVERAGE algorithm.
+
 The TOTAL and NOTOTAL subcommands are mutually exclusive.  If NOTOTAL
 is given and factors have been specified in the VARIABLES subcommand,
 then then statistics for the unfactored dependent variables are
@@ -584,9 +600,9 @@ of variable preceding @code{WITH} against variable following
 @code{WITH} are generated.
 
 
-@node ONEWAY, , T-TEST, Statistics
+@node ONEWAY, REGRESSION, T-TEST, Statistics
 @comment  node-name,  next,  previous,  up
-@section Oneway
+@section ONEWAY
 
 @vindex ONEWAY
 @cindex analysis of variance
@@ -633,3 +649,5 @@ display a warning, but will proceed with the analysis.
 The @code{CONTRASTS} subcommand may be given up to 10 times in order
 to specify different contrast tests.
 @setfilename ignored
+
+@include regression.texi