Hi, I noticed some time ago that, for instance, named vectors that are really makes str() really slow when displaying the names attribute. I don't know exactly when this started, but it wasn't the case say 1-2 years ago. Example (on a WinXP 1.8GHz):
> s <- 1:1000; names(s) <- s > system.time(str(s)) Named int [1:1000] 1 2 3 4 5 6 7 8 9 10 ... - attr(*, "names")= chr [1:1000] "1" "2" "3" "4" ... [1] 0.08 0.00 0.09 NA NA > s <- 1:100000; names(s) <- s > system.time(str(s)) Named int [1:100000] 1 2 3 4 5 6 7 8 9 10 ... - attr(*, "names")= chr [1:100000] "1" "2" "3" "4" ... [1] 8.82 0.00 9.11 NA NA I looks like all strings elements are processed although only the first few are displayed. Cheers Henrik ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
