natural sorting

-----Original Message-----
From: Martin Maechler [mailto:maechler at stat.math.ethz.ch]
Sent: Wednesday, January 18, 2006 4:02 AM
To: Warnes, Gregory R
Cc: Andrew Piskorski; R Development Mailing List
Subject: Re: [Rd] natural sorting

"Greg" == Warnes, Gregory R <gregory.r.warnes at pfizer.com>
    on Tue, 17 Jan 2006 14:48:46 -0500 writes:

    Greg> The 'mixedsort' function in the 'gtools' package does
    Greg> this.  It is probably slower than the c version you
    Greg> point to, but it is already working in R.

Thank you, Greg.

BTW, given the thread, this is a typical example where it might
be very useful to add the following two concepts to the 
   mixedsort.Rd file in gtools :

\concept{natural sort}
\concept{dictionary sort}

so that mixedsort() will be quickly found by 
help.search("natural sort")
and possibly also via the java search from the HTML help interface?
(I never use it; I use help.search() {or then RSiteSearch()}
 exclusively.)

Martin

    >> -----Original Message-----
    >> From: r-devel-bounces at r-project.org
    >> [mailto:r-devel-bounces at r-project.org]On Behalf Of 

Andrew Piskorski

    >> Sent: Thursday, January 12, 2006 10:40 AM
    >> To: R Development Mailing List
    >> Subject: Re: [Rd] natural sorting
    >> 
    >> 
    >> On Wed, Jan 11, 2006 at 05:45:10PM -0500, Gabor 

Grothendieck wrote:

    >> > It would be nifty to incorporate this into R or into 

an R package:

    >> > 
    >> > http://sourcefrog.net/projects/natsort/

    >> 
    >> Btw, I haven't looked at the implementation, but Tcl 

also contains

    >> equivalent functionality, they call it dictionary sort:
    >> 
    >> http://tcl.activestate.com/man/tcl8.4/TclCmd/lsort.htm
    >> 
    >> -- 
    >> Andrew Piskorski <atp at piskorski.com>
    >> http://www.piskorski.com/