Martin Becker wrote: > Dear Cory, > > I am not familiar with SAS, but is this what you are looking for? > > divisionTable <- matrix(c(1, "New England", > 2, "Middle Atlantic", > 3, "East North Central", > 4, "West North Central", > 5, "South Atlantic", > 6, "East South Central", > 7, "West South Central", > 8, "Mountain", > 9, "Pacific"), > ncol=2, byrow=T)
How about just divisionTable <- c('New England', 'Middle Atlantic', ...) then factor(old, 1:9, divisionTable) ? Frank > a <- NULL > a$divisionOld <- c(0,1,2,3,4,5) > a$divisionNew <- > as.character(factor(a$divisionOld,levels=divisionTable[,1],labels=divisionTable[,2])) > a$divisionNew > > [1] NA "New England" "Middle Atlantic" > [4] "East North Central" "West North Central" "South Atlantic" > > > Kind regards, > > Martin > > > Cory Nissen schrieb: >> >> >> Anybody? >> >> >> ________________________________ >> >> From: Cory Nissen >> Sent: Tue 9/4/2007 9:30 AM >> To: r-help@stat.math.ethz.ch >> Subject: variable format >> >> >> Okay, I want to do something similar to SAS proc format. >> >> I usually do this... >> >> a <- NULL >> a$divisionOld <- c(1,2,3,4,5) >> divisionTable <- matrix(c(1, "New England", >> 2, "Middle Atlantic", >> 3, "East North Central", >> 4, "West North Central", >> 5, "South Atlantic"), >> ncol=2, byrow=T) >> a$divisionNew[match(a$divisionOld, divisionTable[,1])] <- divisionTable[,2] >> >> But how do I handle the case where... >> a$divisionOld <- c(0,1,2,3,4,5) #no format available for 0, this throws an >> error. >> OR >> divisionTable <- matrix(c(1, "New England", >> 2, "Middle Atlantic", >> 3, "East North Central", >> 4, "West North Central", >> 5, "South Atlantic", >> 6, "East South Central", >> 7, "West South Central", >> 8, "Mountain", >> 9, "Pacific"), >> ncol=2, byrow=T) >> There are extra formats available... this throws a warning. >> >> Thanks >> >> Cory >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> 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. > -- Frank E Harrell Jr Professor and Chair School of Medicine Department of Biostatistics Vanderbilt University ______________________________________________ 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.