dear all, I'm building new dataframes from bigger one's using e.g. columns F76, F83, F90:
JJ<-data.frame( c( as.character(rep( gender,3))) , c( F76,6- F83, F90) ) Looking into JJ one has: c.as.character.rep.gender..8... c.6...F73..F78..F79..F82..6...F84..F94..F106..F109 1 w 2 2 w 3 3 m 1 etc. Instead of the automatic colnames 'c.as.character.rep.gender..8' I like to have the colnames 'gender' and 'J.value'. I tried levels, labels etc but without success. OK, I can fix(FF) manually, but this is bad, because it has to be done again and again .. OK, I can do gender.J<-c( as.character(rep( gender,3))) Jvalue<-c( F76,6- F83, F90) JJ<-data.frame(gender.J, J.value) but this is not optimal because 'gender' is depending on rep(.., n) and I have many dataframes KK, LL, .. using 'gender' with different size. Question: is it possible to do something like JJ<-data.frame(c( as.character(rep( gender,3))),c( F76,6- F83, F90), ?? col.names=c("gender","Jvalue") ?? ) Sorry, if my question is elementary, but I could not find a fix. Thank your for your advice. hth Wolfgang ______________________________________________ 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.