Try this: x <- cbind(x[1],sapply(x[,2:3], as.numeric))
On 08/02/2008, joseph <[EMAIL PROTECTED]> wrote: > I have a data.frame with all character columns, I would like to convert the > last two columns into numeric.> x[1:5, ] chrN start end > 1 chr1 71310034 71310064 2 chr14 23354088 23354118 3 > chr14 71310034 71310064 4 chr15 37759058 37759088 > 5 chr22 18262638 18262668 > apply(x, 2, FUN = mode) chrN start > end "character" "character" "character" > > > > > ____________________________________________________________________________________ > Be a better friend, newshound, and > > > [[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 ______________________________________________ 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.