X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Ftransformation.texi;h=e10cf8374fc16c4a37810c976568b91b5e950e37;hb=3c7a003b64e72aa4a6a97d5197f303c3cd1c6221;hp=5ea809e54f7e0ebd67bfeb343cd22000b29e759c;hpb=cf334edc03b5898ad364c98dfe22dcf8a634f671;p=pspp diff --git a/doc/transformation.texi b/doc/transformation.texi index 5ea809e54f..e10cf8374f 100644 --- a/doc/transformation.texi +++ b/doc/transformation.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 Data Manipulation @chapter Data transformations @cindex transformations @@ -304,7 +313,8 @@ When @cmd{COMPUTE} is specified following @cmd{TEMPORARY} @vindex COUNT @display -COUNT @var{var_name} = @var{var}@dots{} (@var{value}@dots{}). +COUNT @var{var_name} = @var{var}@dots{} (@var{value}@dots{}) + [/@var{var_name} = @var{var}@dots{} (@var{value}@dots{})]@dots{} Each @var{value} takes one of the following forms: @var{number} @@ -579,13 +589,17 @@ The behaviour of the command is slightly different depending on whether it appears or not. If @samp{INTO @var{dest_vars}} does not appear, then values will be recoded -``in place´´. This means that the recoded values are written back to the +``in place''. +This means that the recoded values are written back to the source variables from whence the original values came. In this case, the @var{dest_value} for every mapping must imply a value which has the same type as the @var{src_value}. For example, if the source value is a string value, it is not permissible for @var{dest_value} to be @samp{SYSMIS} or another forms which implies a numeric result. +It is also not permissible for @var{dest_value} to be longer than the width +of the source variable. + The following example two numeric variables @var{x} and @var{y} are recoded in place. Zero is recoded to 99, the values 1 to 10 inclusive are unchanged, @@ -668,7 +682,7 @@ recode @end example @noindent Here we have two recodings. The first affects the source variable @var{a} and recodes in-place the value 2 into 22 and all other values to 99. -The second recoding copies the values of @var{b} into the the variable @var{z}, +The second recoding copies the values of @var{b} into the variable @var{z}, changing any instances of 1 into 3. @node SORT CASES