Jason Barnhart wrote: > ----- Original Message ----- > From: "John Kane" <[EMAIL PROTECTED]> > To: "lamack lamack" <[EMAIL PROTECTED]>; <R-help@stat.math.ethz.ch> > Sent: Tuesday, March 06, 2007 2:13 PM > Subject: Re: [R] R and SAS proc format > > > >> --- lamack lamack <[EMAIL PROTECTED]> wrote: >> >> >>> Dear all, Is there an R equivalent to SAS's proc >>> format? >>> >> What does the SAS PROC FORMAT do? >> > > It formats or reformats data in the SAS system. >
Slightly more precisely: It creates user-defined formats, which are subsequently associated with variables and used for reading, printing, tabulating, and analyzing data. It is akin to R's factor() constructions, but not quite. For one thing, SAS's formats are separate entities - same format can be used for many variables, whereas R's factors have the formatting coded as a part of the object. For related reasons, a variable in SAS can have more distinct values than there are value labesl for, etc. > It looks this: > > proc format; value kanefmt 1='A' 2='B' 3='C' 4='X' 5='Throw me > out'; > data temp; do i=1 to 10; kanevar=put(i,kanefmt.); output; end; > proc print; run; > > And produces this: > > Obs i kanevar > 1 1 A > 2 2 B > 3 3 C > 4 4 X > 5 5 Throw me out > 6 6 6 > 7 7 7 > 8 8 8 > 9 9 9 > 10 10 10 > > > But it is more robust than what is shown here. > > > > >> ______________________________________________ >> R-help@stat.math.ethz.ch mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> >> > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
