Well, it's may not be the best way to do so, but you may use this: colnames(foo[n])
where n is the column number, or the column name inside '' ''. The $ can't be used because it turn the column content into a vector, loosing its "properties" (e.g.: column and row names). But when you using [], these data.frame properties are preserved, so you can extract them. Hope this helps. Rodrigo. 2010/5/3 adrien Penac <farfel...@yahoo.fr> > Hello, > I can't find how to get de column name from a data.frame dollar reference. > > To make it simple, I'd like to obtain "Bar" from a "foo$Bar" notation. > I've tried col.names(foo$Bar), names(foo$Bar) and so on without sucess. > > Regards > > Blaise > > > > > [[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. > [[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.
