From bug-request at octave dot org Thu Oct 27 15:03:02 2005
Subject: Re: kruskal_wallis_test() does not handle ties correctly
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Timo Juhani Lindfors <timo dot lindfors at iki dot fi>
Cc: Paul Kienzle <pkienzle at users dot sourceforge dot net>,         Timo Lindfors <lindi@kurp.hut.fi>, bug@octave.org
Date: Thu, 27 Oct 2005 15:58:52 -0400

On 27-Oct-2005, Timo Juhani Lindfors wrote:

| Hi,
| 
| On Sat, Oct 22, 2005 at 11:44:12AM -0400, Paul Kienzle wrote:
| > octave:2> x = [1 1 1 2 2 3 3 3 3 4 5 6 7 8 8 8 8];
| > octave:3> diff([0 find(x(1:end-1) != x(2:end)) length(x)])
| > ans =
| > 
| >   3  2  4  1  1  1  1  4
| > 
| > Perhaps octave should have the function runlength:
| 
| > Then you can write:
| > 
| >   sumT = sum(polyval([1 0 -1 0],runlength(sp)));
| 
| Whoa, that's a very compact way to rewrite the fix :)
| 
| Anyways, I'm not very familiar with octave development, should I send
| my fix as a patch somewhere

Yes, please send an updated patch to the bug at octave dot org list.

jwe



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------