En Fri, 06 Mar 2009 21:31:01 -0200, mattia <ger...@gmail.com> escribió:
Thanks, I've found another solution here:
http://www.obitko.com/tutorials/
genetic-algorithms/selection.php
so here is my implementation:
def get_fap(fitness, population):
fap = []
total = 0
for x in population:
f = fitness(x)
fap += [(f, x)]
total += f
return sorted(fap, reverse=True), total
Imagine you're working with someone side by side. You write a note in a
piece of paper, put it into an envelope, and hand it to your co-worker. He
opens the envelope, throws it away, takes the note and files it inside a
folder right at the end. And you do this over and over. What's wrong in
this story?
Please save our trees! Don't waste so many envelopes - that's just what
this line does:
fap += [(f, x)]
Environmentally friendly Pythoneers avoid using discardable intermediate
envelopes:
fap.append((f, x))
Please recycle!
--
Gabriel Genellina
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