On April 8, 2020 1:17:38 PM PDT, Ana Marija wrote: | Hi, | | I have a data frame like this:
Or ... *drum-roll* ... you could use plain old indexing. Have a look: a <- "FID LASER2 CURRELIG PLASER RTNPTHY fam1000_G1000 1 1 1 1 fam1001_G1001 1 1 1 1 fam1003_G1003 2 1 2 2 fam1005_G1005 1 1 1 2 fam1009_G1009 1 1 1 2 fam1052_G1052 1 1 1 2" a <- read.delim(text=a) a$PHENO <- -9 a[a$CURRELIG==1 & a$RTNPTHY==1,"PHENO"] <- 1 a[a$PLASER==2,"PHENO"] <- 2 Best, Rasmus ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
