fixed p-value computation in test of coefficients

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

diff --git a/doc/variables.texi b/doc/variables.texi
index 525c70943c55ac77eb904bfaa85c52c3e06b716e..c2952fbd531d59fd8ad3ab03701580aa687c191b 100644 (file)
--- a/doc/variables.texi
+++ b/doc/variables.texi
@@ -6,6 +6,7 @@ several utility functions for examining and adjusting them.
 
 @menu
 * ADD VALUE LABELS::            Add value labels to variables.
+* DELETE VARIABLES::            Delete variables.
 * DISPLAY::                     Display variable names & descriptions.
 * DISPLAY VECTORS::             Display a list of vectors.
 * FORMATS::                     Set print and write formats.
@@ -25,7 +26,7 @@ several utility functions for examining and adjusting them.
 * WRITE FORMATS::               Set variable write formats.
 @end menu
 
-@node ADD VALUE LABELS, DISPLAY, Variable Attributes, Variable Attributes
+@node ADD VALUE LABELS, DELETE VARIABLES, Variable Attributes, Variable Attributes
 @section ADD VALUE LABELS
 @vindex ADD VALUE LABELS
 
@@ -38,7 +39,24 @@ ADD VALUE LABELS
 LABELS} (@pxref{VALUE LABELS}), but it does not clear value
 labels from the variables before adding the ones specified.
 
-@node DISPLAY, DISPLAY VECTORS, ADD VALUE LABELS, Variable Attributes
+@node DELETE VARIABLES, DISPLAY, ADD VALUE LABELS, Variable Attributes
+@section DELETE VARIABLES
+@vindex DELETE VARIABLES
+
+@display
+DELETE VARIABLES var_list.
+@end display
+
+@cmd{DELETE VARIABLES} deletes the specified variables from the
+dictionary.  It may not be used to delete all variables from the
+dictionary; use @cmd{NEW FILE} to do that (@pxref{NEW FILE}).
+
+@cmd{DELETE VARIABLES} should not used after defining transformations
+and before executing a procedure.  If it is used in such a context, it
+causes the data to be read.  If it is used while @cmd{TEMPORARY} is in
+effect, it causes the temporary transformations to become permanent.
+
+@node DISPLAY, DISPLAY VECTORS, DELETE VARIABLES, Variable Attributes
 @section DISPLAY
 @vindex DISPLAY
 
@@ -101,7 +119,7 @@ FORMATS var_list (fmt_spec).
 
 @cmd{FORMATS} set both print and write formats for the specified
 numeric variables to the specified format specification.
-@xref{Input/Output Formats}.
+@xref{Input and Output Formats}.
 
 Specify a list of variables followed by a format specification in
 parentheses.  The print and write formats of the specified variables
@@ -256,7 +274,7 @@ 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/Output
+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
@@ -333,7 +351,7 @@ transformations.
 
 Specify a slash (@samp{/}), followed by the names of the string
 variables to create and the desired output format specification in
-parentheses (@pxref{Input/Output Formats}).  Variable widths are
+parentheses (@pxref{Input and Output Formats}).  Variable widths are
 implicitly derived from the specified output formats.
 
 Created variables are initialized to spaces.
@@ -446,7 +464,8 @@ to be created as numeric variables with print and write format F8.2.
 Variable names including numeric suffixes may not exceed 64 characters
 in length, and none of the variables may exist prior to @cmd{VECTOR}.
 
-All the variables in a vector must be the same type.
+All the variables in a vector must be the same type.  String variables
+in a vector must all have the same width.
 
 Vectors created with @cmd{VECTOR} disappear after any procedure or
 procedure-like command is executed.  The variables contained in the