X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Fdata-selection.texi;h=d7f4c79fc11d756c2fdbe278a10c0edb1862d62a;hb=5853c2fb0300e3db0ac6a06f1d91a7454f53be42;hp=4b6a748deaac594b4763d6b7751942dd1c42e753;hpb=e5279727df5324fbdc465e983043d27d26d2b42d;p=pspp-builds.git diff --git a/doc/data-selection.texi b/doc/data-selection.texi index 4b6a748d..d7f4c79f 100644 --- a/doc/data-selection.texi +++ b/doc/data-selection.texi @@ -7,7 +7,6 @@ select data records from the active file for analysis. @menu * FILTER:: Exclude cases based on a variable. * N OF CASES:: Limit the size of the active file. -* PROCESS IF:: Temporarily excluding cases. * SAMPLE:: Select a specified proportion of cases. * SELECT IF:: Permanently delete selected cases. * SPLIT FILE:: Do multiple analyses with one command. @@ -44,7 +43,7 @@ case filtering continues until it is explicitly turned off with @code{FILTER OFF}. However, if @cmd{FILTER} is placed after TEMPORARY, it filters only the next procedure or procedure-like command. -@node N OF CASES, PROCESS IF, FILTER, Data Selection +@node N OF CASES @section N OF CASES @vindex N OF CASES @@ -70,7 +69,7 @@ specify a very high number: 100000 or whatever you think is large enough.) Transformation procedures performed after @cmd{N} is executed @emph{do} cause cases to be discarded. -@cmd{SAMPLE}, @cmd{PROCESS IF}, and @cmd{SELECT IF} have +@cmd{SAMPLE} and @cmd{SELECT IF} have precedence over @cmd{N}---the same results are obtained by both of the following fragments, given the same random number seeds: @@ -98,41 +97,7 @@ case count estimates. When @cmd{N} is specified after @cmd{TEMPORARY}, it affects only the next procedure (@pxref{TEMPORARY}). -@node PROCESS IF, SAMPLE, N OF CASES, Data Selection -@section PROCESS IF -@vindex PROCESS IF - -@example -PROCESS IF expression. -@end example - -@cmd{PROCESS IF} temporarily eliminates cases from the -data stream. Its effects are active only through the execution of the -next procedure or procedure-like command. - -Specify a boolean expression (@pxref{Expressions}). If the value of the -expression is true for a particular case, the case will be analyzed. If -the expression has a false or missing value, then the case will be -deleted from the data stream for this procedure only. - -Regardless of its placement relative to other commands, @cmd{PROCESS IF} -always takes effect immediately before data passes to the procedure. -Only one @cmd{PROCESS IF} command may be in effect at any given time. - -The effects of @cmd{PROCESS IF} are similar, but not identical, to the -effects of executing @cmd{TEMPORARY}, then @cmd{SELECT IF} -(@pxref{SELECT IF}). - -The filtering performed by @cmd{PROCESS IF} takes place immediately -before cases pass to a procedure for analysis. Because @cmd{PROCESS -IF} affects only a single procedure, its placement relative to -@cmd{TEMPORARY} is unimportant. - -@cmd{PROCESS IF} is deprecated. It is included for compatibility with -old command files. New syntax files should use @cmd{SELECT IF} or -@cmd{FILTER} instead. - -@node SAMPLE, SELECT IF, PROCESS IF, Data Selection +@node SAMPLE @section SAMPLE @vindex SAMPLE