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nancheck
2008 Apr 17
1
Couldn't (and shouldn't) is.unsorted() be faster?
Hi,
Couldn't is.unsorted() bail out immediately here (after comparing
the first 2 elements):
> x <- 20000000:1
> system.time(is.unsorted(x), gcFirst=TRUE)
user system elapsed
0.084 0.040 0.124
> x <- 200000000:1
> system.time(is.unsorted(x), gcFirst=TRUE)
user system elapsed
0.772 0.440 1.214
Thanks!
H.