Re: [Rd] "Human-style" sort() of alphanum strings?

From: Henrik Bengtsson <hb_at_stat.berkeley.edu>
Date: Thu, 07 Jan 2010 15:50:00 -0800

ink1">Follow up/bug:

mixedsort() gets confused when there are periods in the string(s);

> print(gtools::mixedsort("a"))

[1] "a"
> print(gtools::mixedsort("a."))

[1] "a." NA
> print(gtools::mixedsort("a.b"))

[1] "a.b" NA NA
> print(gtools::mixedsort("a.b."))

[1] "a.b." NA NA NA
> print(gtools::mixedsort("a.b.c"))

[1] "a.b.c" NA NA NA NA
> print(gtools::mixedsort("a.b.c."))

[1] "a.b.c." NA NA NA NA NA

Is the '.' trigger an incorrect interpretation of a number?

/Henrik

On Tue, Jan 5, 2010 at 3:48 PM, Gabor Grothendieck <ggrothendieck_at_gmail.com> wrote:
> See mixedsort in gtools.  Also on
http://gsubfn.googlecode.com see
> mixsort example in the section starting ### more examples
>
> On Tue, Jan 5, 2010 at 6:34 PM, Henrik Bengtsson <hb_at_stat.berkeley.edu> wrote:
>> I know it is fairly easy to implement (though not always well
>> defined), but is there an existing sort function out there that takes
>> alphanum strings and sort them in a "human" fashion?  For example,
>> instead of:
>>
>> z1.doc z10.doc z100.doc z101.doc z11.doc z2.doc
>>
>> it should out put:
>>
>> z1.doc z2.doc z10.doc z11.doc z100.doc z101.doc
>>
>> (from http://www.davekoelle.com/alphanum.html).
>>
>> /Henrik
>>
>> ______________________________________________
>> R-devel_at_r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>



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