Displaying 1 result from an estimated 1 matches for "4617168".
2014 Mar 17
1
Deep copy of factor levels?
...?
This has come up when looking at the performance of rbind.fill (in the
plyr package) with factors: https://github.com/hadley/plyr/issues/206 .
Best regards
Kirill
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 325977 17.5 1074393 57.4 10049951 536.8
Vcells 4617168 35.3 87439742 667.2 204862160 1563.0
> system.time(x <- factor(seq_len(1e4)))
user system elapsed
0.008 0.000 0.007
> system.time(xx <- as.list(x))
user system elapsed
4.263 0.000 4.322
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncel...