Re: [R] Sorting strings
NICE DDE It solves my problem ! Awesome stuff -- View this message in context: http://r.789695.n4.nabble.com/Sorting-strings-tp4403696p4404424.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Sorting strings
On 20-Feb-2012 Petr Savicky wrote:
> On Mon, Feb 20, 2012 at 05:55:30AM -0800, statquant2 wrote:
>> I did, but this does not give the answer to my question...
>> Anybody knows how to tweack the behaviour of sort or how to do ?
>
> Hi.
> Try this
>
> Sys.setlocale("LC_COLLATE", "C")
>
> This comes from ?locale and reads there
>
> Sys.setlocale("LC_COLLATE", "C") # turn off locale-specific sorting,
> # usually
>
> See also ?sort
>
> The sort order for character vectors will depend on the
> collating sequence of the locale in use: see 'Comparison'.
>
> ?Comparison
>
> Comparison of strings in character vectors is lexicographic
> within the strings using the collating sequence of the locale
> in use: see 'locales'. The collating sequence of locales such
> as 'en_US' is normally different from 'C' (which should use
> ASCII) and can be surprising. Beware of making _any_ assumptions
> about the collation order: ...
>
> Hope this helps.
> Petr Savicky.
I've been following this thread with interest. I had begun composing
a reply on similar lines to Petr's above, but put it on one side
while waiting to see how the thread would evolve.
In view of the tangle of mixed experiences reported by different
users, I now wonder whether we should have something like "lc_collate"
as a specific parameter for sort(), e.g. so that one can set, for a
particular sorting operation,
sort(c("X.","X0B"),lc_collate="C")
without affecting the system "LC_COLLATE" setting (i.e. the change
takes effect only within the execution of that sort() command).
Ted.
-
E-Mail: (Ted Harding)
Date: 20-Feb-2012 Time: 17:16:47
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Re: [R] Sorting strings
On 2012-2-20 23:15, Rui Barradas wrote:
Could it be OS related?
Yes, it seems. I tried it on my local windows xp and redhat linux
server, and got different results. Hope it will be fixed in the future
versions. Maybe we should keep alert to check whether the results are
consistent when transferring our code from one platform to another.
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X0B.Z" "X.Z"
> R.version
_
platform x86_64-unknown-linux-gnu
arch x86_64
os linux-gnu
system x86_64, linux-gnu
status
major 2
minor 9.1
year 2009
month 06
day26
svn rev48839
language R
version.string R version 2.9.1 (2009-06-26)
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X.Z" "X0B.Z"
> R.version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 13.0
year 2011
month 04
day13
svn rev55427
language R
version.string R version 2.13.0 (2011-04-13)
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Re: [R] Sorting strings
Sorry, just made a mistake. This is the result from windows xp.
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X.Z" "X0B.Z"
> R.version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 13.0
year 2011
month 04
day13
svn rev55427
language R
version.string R version 2.13.0 (2011-04-13)
On 2012-2-21 0:13, De-Jian Zhao wrote:
It seems OS-dependent. I got different results when trying it on
windows xp and Redhat linux.
> R.version
_
platform x86_64-unknown-linux-gnu
arch x86_64
os linux-gnu
system x86_64, linux-gnu
status
major 2
minor 9.1
year 2009
month 06
day26
svn rev48839
language R
version.string R version 2.9.1 (2009-06-26)
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X.Z" "X0B.Z"
> R.version
_
platform x86_64-unknown-linux-gnu
arch x86_64
os linux-gnu
system x86_64, linux-gnu
status
major 2
minor 9.1
year 2009
month 06
day26
svn rev48839
language R
version.string R version 2.9.1 (2009-06-26)
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X0B.Z" "X.Z"
On 2012-2-20 23:27, statquant2 wrote:
Ok I have :
R) str(R.Version())
List of 13
$ platform : chr "x86_64-unknown-linux-gnu"
$ arch : chr "x86_64"
$ os: chr "linux-gnu"
$ system: chr "x86_64, linux-gnu"
$ status: chr ""
$ major : chr "2"
$ minor : chr "12.2"
$ year : chr "2011"
$ month : chr "02"
$ day : chr "25"
$ svn rev : chr "54585"
$ language : chr "R"
$ version.string: chr "R version 2.12.2 (2011-02-25)"
R) sort(c("X.","X0B"))
[1] "X." "X0B"
R) sort(c("X.Z","X0B.Z"))
[1] "X0B.Z" "X.Z"
I am using a linux redHat
$ uname -a
Linux 2.6.18-238.9.1.el5 #1 SMP Fri Mar 18 12:42:39 EDT 2011 x86_64
x86_64
x86_64 GNU/Linux
--
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Re: [R] Sorting strings
On Mon, Feb 20, 2012 at 04:56:21PM +0100, Petr Savicky wrote:
> On Mon, Feb 20, 2012 at 05:55:30AM -0800, statquant2 wrote:
> > I did, but this does not give the answer to my question...
> > Anybody knows how to tweack the behaviour of sort or how to do ?
>
> Hi.
>
> Try this
>
> Sys.setlocale("LC_COLLATE", "C")
>
>
> This comes from ?locale and reads there
This is not in ?locale, but in ?locales
> Sys.setlocale("LC_COLLATE", "C") # turn off locale-specific sorting,
> # usually
This in the example section at the end.
Try also to see
Sys.getlocale()
Relevant can also be LC_CTYPE
Sys.setlocale("LC_CTYPE", "C")
Hope this helps.
Petr Savicky.
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Re: [R] Sorting strings
It seems OS-dependent. I got different results when trying it on windows
xp and Redhat linux.
> R.version
_
platform x86_64-unknown-linux-gnu
arch x86_64
os linux-gnu
system x86_64, linux-gnu
status
major 2
minor 9.1
year 2009
month 06
day26
svn rev48839
language R
version.string R version 2.9.1 (2009-06-26)
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X.Z" "X0B.Z"
> R.version
_
platform x86_64-unknown-linux-gnu
arch x86_64
os linux-gnu
system x86_64, linux-gnu
status
major 2
minor 9.1
year 2009
month 06
day26
svn rev48839
language R
version.string R version 2.9.1 (2009-06-26)
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X0B.Z" "X.Z"
On 2012-2-20 23:27, statquant2 wrote:
Ok I have :
R) str(R.Version())
List of 13
$ platform : chr "x86_64-unknown-linux-gnu"
$ arch : chr "x86_64"
$ os: chr "linux-gnu"
$ system: chr "x86_64, linux-gnu"
$ status: chr ""
$ major : chr "2"
$ minor : chr "12.2"
$ year : chr "2011"
$ month : chr "02"
$ day : chr "25"
$ svn rev : chr "54585"
$ language : chr "R"
$ version.string: chr "R version 2.12.2 (2011-02-25)"
R) sort(c("X.","X0B"))
[1] "X." "X0B"
R) sort(c("X.Z","X0B.Z"))
[1] "X0B.Z" "X.Z"
I am using a linux redHat
$ uname -a
Linux 2.6.18-238.9.1.el5 #1 SMP Fri Mar 18 12:42:39 EDT 2011 x86_64 x86_64
x86_64 GNU/Linux
--
View this message in context:
http://r.789695.n4.nabble.com/Sorting-strings-tp4403696p4404298.html
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__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
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Re: [R] Sorting strings
Ok I have :
R) str(R.Version())
List of 13
$ platform : chr "x86_64-unknown-linux-gnu"
$ arch : chr "x86_64"
$ os: chr "linux-gnu"
$ system: chr "x86_64, linux-gnu"
$ status: chr ""
$ major : chr "2"
$ minor : chr "12.2"
$ year : chr "2011"
$ month : chr "02"
$ day : chr "25"
$ svn rev : chr "54585"
$ language : chr "R"
$ version.string: chr "R version 2.12.2 (2011-02-25)"
R) sort(c("X.","X0B"))
[1] "X." "X0B"
R) sort(c("X.Z","X0B.Z"))
[1] "X0B.Z" "X.Z"
I am using a linux redHat
$ uname -a
Linux 2.6.18-238.9.1.el5 #1 SMP Fri Mar 18 12:42:39 EDT 2011 x86_64 x86_64
x86_64 GNU/Linux
--
View this message in context:
http://r.789695.n4.nabble.com/Sorting-strings-tp4403696p4404298.html
Sent from the R help mailing list archive at Nabble.com.
__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] Sorting strings
Hello,
statquant2 wrote
>
> Ok so it changed from 2.12.2 to 2.14.1 ??
> Can somebody tell me how to modify my sort or whatever to get the save
> resilt that I would get in 2.14.1 ?
>
> Cheers
>
I don't know about 2.12.2 but for 2.12.0 I get:
> R.version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 12.0
year 2010
month 10
day15
svn rev53317
language R
version.string R version 2.12.0 (2010-10-15)
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X.Z" "X0B.Z"
And the same for 2.14.1:
> R.version
_
platform i386-pc-mingw32
[... deleted...]
version.string R version 2.14.1 (2011-12-22)
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X.Z" "X0B.Z"
Could it be OS related?
Rui Barradas.
--
View this message in context:
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] Sorting strings
On Mon, Feb 20, 2012 at 05:55:30AM -0800, statquant2 wrote:
> I did, but this does not give the answer to my question...
> Anybody knows how to tweack the behaviour of sort or how to do ?
Hi.
Try this
Sys.setlocale("LC_COLLATE", "C")
This comes from ?locale and reads there
Sys.setlocale("LC_COLLATE", "C") # turn off locale-specific sorting,
# usually
See also ?sort
The sort order for character vectors will depend on the collating
sequence of the locale in use: see ‘Comparison’.
?Comparison
Comparison of strings in character vectors is lexicographic within
the strings using the collating sequence of the locale in use: see
‘locales’. The collating sequence of locales such as ‘en_US’ is
normally different from ‘C’ (which should use ASCII) and can be
surprising. Beware of making _any_ assumptions about the
collation order: ...
Hope this helps.
Petr Savicky.
__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] Sorting strings
I don't *think* it's version specific, but rather it depends on your (still unstated) locale, as the documentation goes to great lengths to point out. Change that and you might see different behaviors. Michael On Mon, Feb 20, 2012 at 8:55 AM, statquant2 wrote: > I did, but this does not give the answer to my question... > Anybody knows how to tweack the behaviour of sort or how to do ? > > -- > View this message in context: > http://r.789695.n4.nabble.com/Sorting-strings-tp4403696p4404091.html > Sent from the R help mailing list archive at Nabble.com. > > __ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Sorting strings
I did, but this does not give the answer to my question... Anybody knows how to tweack the behaviour of sort or how to do ? -- View this message in context: http://r.789695.n4.nabble.com/Sorting-strings-tp4403696p4404091.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Sorting strings
Ok so it changed from 2.12.2 to 2.14.1 ?? Can somebody tell me how to modify my sort or whatever to get the save resilt that I would get in 2.14.1 ? Cheers -- View this message in context: http://r.789695.n4.nabble.com/Sorting-strings-tp4403696p4403858.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Sorting strings
See ?Comparison, which holds some warnings about what to expect when
sorting strings.
Am 20.02.2012 11:51, schrieb Petr Savicky:
On Mon, Feb 20, 2012 at 02:18:42AM -0800, statquant2 wrote:
Hi all, I am having difficulties to understand how R sort strings:
If I do
R) sort(c("X.","X0B"))
[1] "X." "X0B"
So for me, as far as lexicographic order is concerned I can add whatever to
the end, the order will remain the same, but :
Hi.
This neednot be true for strings of different length.
For example
ab
abc
become by concatenation with z
abcz
abz
Petr Savicky.
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--
Enrico Schumann
Lucerne, Switzerland
http://nmof.net/
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Re: [R] Sorting strings
"Petr Savicky" wrote in message
news:20120220105153.gc21...@cs.cas.cz...
> On Mon, Feb 20, 2012 at 02:18:42AM -0800, statquant2 wrote:
>> Hi all, I am having difficulties to understand how R sort strings:
>>
>> If I do
>> R) sort(c("X.","X0B"))
>> [1] "X." "X0B"
>>
>> So for me, as far as lexicographic order is concerned I can add whatever
>> to
>> the end, the order will remain the same, but :
>
> Hi.
>
> This neednot be true for strings of different length.
> For example
>
> ab
> abc
>
> become by concatenation with z
>
> abcz
> abz
>
> Petr Savicky.
>
That's not the explanation in this case.
The OP isn't telling us everything.
I get [R version 2.14.1 Platform: i386-pc-mingw32/i386 (32-bit)]:
> sort(c("X.","X0B"))
[1] "X." "X0B"
> sort(c("X.Z","X0B.Z"))
[1] "X.Z" "X0B.Z"
KJ
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Re: [R] Sorting strings
On Mon, Feb 20, 2012 at 02:18:42AM -0800, statquant2 wrote:
> Hi all, I am having difficulties to understand how R sort strings:
>
> If I do
> R) sort(c("X.","X0B"))
> [1] "X." "X0B"
>
> So for me, as far as lexicographic order is concerned I can add whatever to
> the end, the order will remain the same, but :
Hi.
This neednot be true for strings of different length.
For example
ab
abc
become by concatenation with z
abcz
abz
Petr Savicky.
__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] Sorting strings
Hi all, I am having difficulties to understand how R sort strings:
If I do
R) sort(c("X.","X0B"))
[1] "X." "X0B"
So for me, as far as lexicographic order is concerned I can add whatever to
the end, the order will remain the same, but :
R) sort(c("X.Z","X0B.Z"))
[1] "X0B.Z" "X.Z"
Can somebody give me a trick for the order to become lexicographic ?
--
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