Your suggestion works perfect as i pointed previous message. Now have another question about data editing. I try this code: X[X[,"c"]==1,"b"]<-X[,"d"] and results with error: `[<-.data.frame`(`*tmp*`, X[, "c"] == 1, "b", value = c(NA, : replacement has 9 rows, data has 2
Logically i selected 2 rows with X[,"c"]==1. Than i want to replace in that rows its own data from "d" to "b" with X[,"b"]<-X[,"d"]. What is wrong? -- View this message in context: http://r.789695.n4.nabble.com/conditional-data-replace-recode-change-or-whatsoever-tp3714715p3715218.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.