On Fri, Mar 26, 2010 at 4:15 PM, Bert Gunter <gunter.ber...@gene.com> wrote: > Is this, from the man page, relevant? > > "An empty index selects all values: this is most often used to replace all > the entries but keep the attributes. "
No, I think that means doing "x[]", and only in replacement: > x=101:105 > attr(x,"foo")="Fnord" > x [1] 101 102 103 104 105 attr(,"foo") [1] "Fnord" > x[] [1] 101 102 103 104 105 attr(,"foo") [1] "Fnord" > x[]=1:5 > x [1] 1 2 3 4 5 attr(,"foo") [1] "Fnord" as you see, I've replaced all the entries but kept the attributes. c(NA,NA,NA) is clearly not empty... Barry ______________________________________________ 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.
