33 lines
1.0 KiB
Plaintext
33 lines
1.0 KiB
Plaintext
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###
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### emulate the default parameters given in Chapter 7 of
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### _Genetic Programming_ (Koza).
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###
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### note that in several cases, parameters are explicitly set to their
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### default values. this is redundant but makes things clearer.
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###
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###
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### if you increase the population size to 1000 or more, change the
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### selection methods to "fitness_overselect".
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###
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max_generations = 50
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pop_size = 500
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init.method = half_and_half
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init.depth = 2-6
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max_depth = 17
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breed_phases = 2
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breed[1].rate = 0.9 # 90% of the time...
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breed[1].operator = crossover, \ # do crossover...
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select = fitness, \ # ...using fitness-proportionate selection.
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internal = 0.9, \ # choose internal crossover points 90% of
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external = 0.1, # the time, external the other 10%.
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breed[2].rate = 0.1 # 10% of the time...
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breed[2].operator = reproduction, \ # do reproduction...
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select = fitness # ...using fitness-proportionate selection.
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