Talk:Evolutionary algorithm: Difference between revisions
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== Problem in previous Python implementation == |
== Problem in previous Python implementation == |
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In the first Python example: |
In the first Python example: |
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< |
<syntaxhighlight lang="python">def mutaterate(): |
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'Less mutation the closer the fit of the parent' |
'Less mutation the closer the fit of the parent' |
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#This formula does not work as intended because it performs int division |
#This formula does not work as intended because it performs int division |
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return 1-((perfectfitness - fitness(parent)) / perfectfitness * (1 - minmutaterate)) |
return 1-((perfectfitness - fitness(parent)) / perfectfitness * (1 - minmutaterate)) |
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</syntaxhighlight> |
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For ex- ((20 - 10)/20*(1-0.09)) will evaluate to 0 |
For ex- ((20 - 10)/20*(1-0.09)) will evaluate to 0 |
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Thus it gets stuck in an infinite loop waiting for mutation to occur. |
Thus it gets stuck in an infinite loop waiting for mutation to occur. |
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