Yep, but I figured that out quite fast ;0) Thanks for giving me a hand ... you want believe a many times I skimmed the cbind help without actually seeing this ... well, it was 0:30 ...
Thanks again, Joh Tony Plate wrote: > Whoops, it looks like there's a typo in ?cbind (R version 2.6.0 Patched > (2007-10-11 r43143)), and I blindly copied it into my message. > > That should read (emphasis added): > > "and convert character columns to factors unless stringsAsFactors = > ***FALSE***" > > Here's an example: > > > x <- data.frame(X=1:3) > > sapply(cbind(x, letters[1:3]), class) > X letters[1:3] > "integer" "factor" > > sapply(cbind(x, letters[1:3], stringsAsFactors=FALSE), class) > X letters[1:3] > "integer" "character" > > > > Thanks to Mark Leeds for pointing that out to me in a private message! > > (I see this still in the source at > https://svn.r-project.org/R/trunk/src/library/base/man/cbind.Rd -- is that > the right place to look for the latest source to make sure it hasn't been > fixed already?) > > -- Tony Plate > > > Tony Plate wrote: >> From ?cbind: >> >> Data frame methods >> The cbind data frame method is just a wrapper for data.frame(..., >> check.names = FALSE). This means that it will split matrix columns in >> data frame arguments, and convert character columns to factors unless >> stringsAsFactors = TRUE is passed. >> >> (I'm guessing 'spectrum' is a data.frame before the code fragment you've >> shown) >> >> hope this helps, >> >> Tony Plate >> >> Johannes Graumann wrote: >>> Why is class(spectrum[["Ion"]]) after this "factor"? >>> >>> spectrum <- cbind(spectrum,Ion=rep("", >>> nrow(spectrum)),Deviation.AMU=rep(0.0, nrow(spectrum))) >>> >>> slowly going crazy ... >>> >>> Joh >>> >>> ______________________________________________ >>> 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. >>> >> >> ______________________________________________ >> 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. >> > > ______________________________________________ > 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. ______________________________________________ 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.
