perl-module: Add copyright and licence notices

[pspp] / doc / variables.texi

diff --git a/doc/variables.texi b/doc/variables.texi
index cc13e784de2e9732d028b4fa03077e2f75096aad..eb931d448bf6a6283dec28484cdfc5edab874dde 100644 (file)
--- a/doc/variables.texi
+++ b/doc/variables.texi
@@ -1,3 +1,12 @@
+@c PSPP - a program for statistical analysis.
+@c Copyright (C) 2017 Free Software Foundation, Inc.
+@c Permission is granted to copy, distribute and/or modify this document
+@c under the terms of the GNU Free Documentation License, Version 1.3
+@c or any later version published by the Free Software Foundation;
+@c with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
+@c A copy of the license is included in the section entitled "GNU
+@c Free Documentation License".
+@c
 @node Variable Attributes
 @chapter Manipulating variables
 
@@ -266,8 +275,10 @@ same number of old and new variable names.  Each old variable is renamed to
 the corresponding new variable name.  Multiple parenthesized groups of
 variables may be specified.
 
-The @subcmd{DROP} subcommand deletes a specified list of variables from the
-active dataset.
+The @subcmd{DROP} subcommand deletes a specified list of variables
+from the active dataset.  @cmd{MODIFY VARS} may not be used to delete
+all variables from the dictionary; use @cmd{NEW FILE} to do that
+(@pxref{NEW FILE}).
 
 The @subcmd{KEEP} subcommand keeps the specified list of variables in the active
 dataset.  Any unlisted variables are deleted from the active dataset.
@@ -393,15 +404,15 @@ response sets are currently used only by third party software.
 @vindex NUMERIC
 
 @display
-NUMERIC /@var{var_list} [(@var{fmt_spec})].
+NUMERIC @var{var_list} [(@var{fmt_spec})] [/@var{var_list} [(@var{fmt_spec})]]@dots{}
 @end display
 
 @cmd{NUMERIC} explicitly declares new numeric variables, optionally
 setting their output formats.
 
-Specify a slash (@samp{/}), followed by the names of the new numeric
-variables.  If you wish to set their output formats, follow their names
-by an output format specification in parentheses (@pxref{Input and Output
+Specify the names of the new numeric variables as @var{var_list}.  If
+you wish to set the variables' output formats, follow their names by
+an output format specification in parentheses (@pxref{Input and Output
 Formats}); otherwise, the default is F8.2.
 
 Variables created with @cmd{NUMERIC} are initialized to the