list() does not assign names but data.frame(a, b) does and can be used at least in the case shown where a and b have the same length. And, of course, a data frame is a list.
> a <- 1:5; b <- 6:10 > names(data.frame(a, b)) [1] "a" "b" 2009/10/31 Chirok Han <chirok....@gmail.com>: > Hi > > Consider >> a <- 1:5; b <- 6:10 >> x <- list(a=a,b=b) >> y <- list(a,b) > > I can get c("a","b") from x using names(x). Is it also possible to get > "a" and "b" from y? (The command "names(y)" gives NULL.) > > Thanks in advance. > > Chirok > > ______________________________________________ > 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.