[galib] Objective function evaluation with GAListGenome

[David R White]

Hi,

Please forgive me if this is an obvious question.

I'm using a GAListGenome.  I have a mutation operator that adds, 
removes, or changes a node in the genome.  When I add or remove a node, 
then the individual is re-evaluated before the next generation.  
However, if instead I change a value in a node it is not re-evaluated.

I am correctly returning an integer number reflecting the number of 
mutations made within my mutation function.

Please could someone explain why this happens?  I would have thought 
that the fact I'd made a mutation would imply that the individual should 
be re-evaluated.

Thanks,

David

-- 
David R White
Research Associate
Dept. of Computer Science
University of York, 
Heslington, YO10 5DD
+44 (0)1904 4334771
http://www.cs.york.ac.uk/~drw