From luca@peperone.idsia.ch Fri Oct 7 14:59:38 EDT 1994
Article: 3933 of comp.ai.genetic
Newsgroups: comp.ai.genetic
Path: cantaloupe.srv.cs.cmu.edu!das-news.harvard.edu!news2.near.net!MathWorks.Com!europa.eng.gtefsd.com!howland.reston.ans.net!EU.net!chsun!peperone!luca
From: luca@peperone.idsia.ch (Luca Gambardella)
Subject: BUG in GENEsYs 1.0
Message-ID: <Cx557t.5Cp@eunet.ch>
Sender: luca@peperone (Luca Gambardella)
Organization: IDSIA
Date: Tue, 4 Oct 1994 09:04:39 GMT
Lines: 35
I'm making some experiments using GENEsYS 1.0 that I have got from
FTP.AIC.NRL.NAVY.MIL /pub/galist/src/ga.
I have discover that the system does not execute correctly crossover
operation becouse it does not sort crossover points correctly.
The function sort((char *) Pts, NbrPts, sizeof(int), icmp) in cross.c;
does not sort anything!!.
The error is in icmp function (in cross.c) that must be redefined as:
int
icmp(i,j) /* compare two integer values for qsort */
register int *i,
*j;
{
return (*i - *j);
} /* end icmp */
Luca Gambardella
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Luca Gambardella
IDSIA - Istituto Dalle Molle di Studi sull'Intelligenza Artificiale
C.so Elvezia 36
6900 Lugano - CH
tel. +41 91 228881 fax. +41 91 228994 email luca@idsia.ch
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