You can work with levels of factor: levels(DF$SOCIAL_STATUS)[DF$MALE > 4 & DF$SOCIAL_STATUS == "B"] <- "C"
On Wed, Jun 24, 2009 at 1:34 PM, Mark Na <mtb...@gmail.com> wrote: > Hi R-helpers, > > Please see the below R output. > The problem is that after running the ifelse statement, data$SOCIAL_STATUS > is converted from a factor to a character. > > Is there some way I can avoid this conversion? > > Thanks in advance, Mark Na > > > > str(data) > 'data.frame': 2100 obs. of 11 variables: > $ DATE : Factor w/ 5 levels "4-Jun-09","7-May-09",..: 1 1 1 1 1 1 > 1 1 1 1 ... > $ POND_ID : Factor w/ 113 levels "10","18","19",..: 8 8 8 8 8 8 8 8 > 8 > 8 ... > $ STATUS : num 1 1 1 1 1 1 1 1 1 1 ... > $ SPECIES : Factor w/ 25 levels "AGWT","AMCO",..: 10 10 7 7 3 5 5 5 > 5 > 2 ... > $ SOCIAL_STATUS : Factor w/ 8 levels "A","B","D","E",..: 4 1 4 1 4 4 4 4 1 > 6 ... > $ COUNT_OF_GROUPS: num 1 1 1 1 1 3 3 3 1 2 ... > $ MALE : num 1 1 1 1 1 1 1 1 1 0 ... > $ FEMALE : num 1 0 1 0 1 1 1 1 0 0 ... > $ NOSEX : num 0 0 0 0 0 0 0 0 0 2 ... > $ UPLAND : num 0 0 0 0 0 0 0 0 0 0 ... > $ TAG : num 0 0 0 0 0 0 0 0 0 0 ... > > > data$SOCIAL_STATUS<-ifelse(data$SOCIAL_STATUS=="B" & data$MALE>4, "C", > data$SOCIAL_STATUS) > > > str(data) > 'data.frame': 2100 obs. of 11 variables: > $ DATE : Factor w/ 5 levels "4-Jun-09","7-May-09",..: 1 1 1 1 1 1 > 1 1 1 1 ... > $ POND_ID : Factor w/ 113 levels "10","18","19",..: 8 8 8 8 8 8 8 8 > 8 > 8 ... > $ STATUS : num 1 1 1 1 1 1 1 1 1 1 ... > $ SPECIES : Factor w/ 25 levels "AGWT","AMCO",..: 10 10 7 7 3 5 5 5 > 5 > 2 ... > $ SOCIAL_STATUS : chr "4" "1" "4" "1" ... > $ COUNT_OF_GROUPS: num 1 1 1 1 1 3 3 3 1 2 ... > $ MALE : num 1 1 1 1 1 1 1 1 1 0 ... > $ FEMALE : num 1 0 1 0 1 1 1 1 0 0 ... > $ NOSEX : num 0 0 0 0 0 0 0 0 0 2 ... > $ UPLAND : num 0 0 0 0 0 0 0 0 0 0 ... > $ TAG : num 0 0 0 0 0 0 0 0 0 0 ... > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org 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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org 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.
