Dear all, for each A == 3 in 'df' I would like to change the variables B and K. My result should be the whole df and not the subset (A==3)...
df <- data.frame(A = c(1,1,3,2,2,3,3), B = c(2,1,1,2,7,8,7), K = c("a.1", "d.2", "f.3", "a.1", "k.4", "f.9", "f.5")) x1 <- within(df[df$A ==3, ], { B1 <- 5 K1 <- gsub("f","m", K) }) x2 <- transform(df[df$A==3, ], B1 = 5, K1 = gsub("f","m", K)) Thanks for any help! Patrick ______________________________________________ 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.