Re: [Rd] bug in rank(), order(), is.unsorted() on character vector

From: Roebuck,Paul L <proebuck_at_mdanderson.org>
Date: Wed, 07 Dec 2011 12:29:26 -0600


Do this first and try again.

R> Sys.setlocale("LC_COLLATE", "C")

On 12/7/11 3:41 AM, "Hervé Pagès" <hpages_at_fhcrc.org> wrote:

> Hi,
>
> This looks OK:
>

>> x <- c("_1_", "1_9", "2_9")
>> rank(x)

> [1] 1 2 3
>
> But this does not:
>
>> xa <- paste(x, "a", sep="")
>> xa

> [1] "_1_a" "1_9a" "2_9a"
>> rank(xa)

> [1] 2 1 3
>
> Cheers,
> H.
>
>> sessionInfo()

> R version 2.14.0 (2011-10-31)
> Platform: x86_64-unknown-linux-gnu (64-bit)
>
> locale:
> [1] LC_CTYPE=en_CA.UTF-8 LC_NUMERIC=C
> [3] LC_TIME=en_CA.UTF-8 LC_COLLATE=en_CA.UTF-8
> [5] LC_MONETARY=en_CA.UTF-8 LC_MESSAGES=en_CA.UTF-8
> [7] LC_PAPER=C LC_NAME=C
> [9] LC_ADDRESS=C LC_TELEPHONE=C
> [11] LC_MEASUREMENT=en_CA.UTF-8 LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats graphics grDevices utils datasets methods base
>
> loaded via a namespace (and not attached):
> [1] tools_2.14.0
>


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