On Thu, Sep 26, 2013 at 9:10 PM, Rolf Turner <rolf.tur...@xtra.co.nz> wrote:
> On 09/27/13 11:07, Duncan Murdoch wrote:
>>
>> On 13-09-26 5:32 PM, Rolf Turner wrote:
>>>
>>>
>>> Just to add to the confusion, on my system I get NA --- which I
>>> understand to be
>>> the correct value --- from all of min(NA,"bla"), min("bla",NA),
>>> min(c(NA,"bla")), and
>>> min(c("bla",NA)). When I append the argument na.rm=TRUE to each of the
>>> calls,
>>> I get "bla" from each.
>>>
>>> So, no bug in my system.
>>
>>
>> I've just built a 3.0.1 version, and I definitely see the bug there. What
>> do you get from these expressions?
>>
>> str(min(NA, "bla"))
>> str(min("bla", NA))
>> str(min(NA_character_, "bla"))
>>
>> I get
>>
>> > str(min(NA, "bla"))
>> int NA
>> > str(min("bla", NA))
>> chr "bla"
>> > str(min(NA_character_, "bla"))
>> chr "bla"
>>
>> on both Windows and OSX R 3.0.1. After today's patch, I get
>>
>> chr NA
>>
>> for all three.
>
>
> I get:
>
>> str(min(NA, "bla"))
> int NA
> > str(min("bla", NA))
> chr NA
>> str(min(NA_character_, "bla"))
> chr NA
>
> Which looks to me to be as it should be. How come my system's so good
> compared to others? :-)
It's not; you just have your locale set differently;
> Sys.getlocale()
[1]
"LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=en_US.UTF-8;LC_MESSAGES=en_US.UTF-8;LC_PAPER=C;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C"
> for(l in letters) print(min(l, NA))
[1] "a"
[1] "b"
[1] "c"
[1] "d"
[1] "e"
[1] "f"
[1] "g"
[1] "h"
[1] "i"
[1] "j"
[1] "k"
[1] "l"
[1] "m"
[1] "n"
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
> Sys.setlocale("LC_ALL", "C")
[1]
"LC_CTYPE=C;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAGES=en_US.UTF-8;LC_PAPER=C;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C"
> for(l in letters) print(min(l, NA))
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
[1] NA
> sessionInfo()
R version 3.0.1 (2013-05-16)
Platform: x86_64-unknown-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=C LC_NUMERIC=C
[3] LC_TIME=C LC_COLLATE=C
[5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=C LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
Best,
Ista
>
> cheers,
>
> Rolf
>
>
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