Hi again.
I've used gp.koza.xover.likelihood to set the probability of performing the
crossover operator and I've seen differences in my results, what it sounds
good.
After checking the koza.params file, I see that like for xover, there is a
gp.koza.mutate param. I've tried with gp.koza.mutate.likelihood and when
printing unaccessed params, the gp.koza.mutate.likelihood appears in that
list.

Please, how do I set a probability for performing the mutation operator, I
mean, with probability 0.x I want the mutation operation to be performed?

Thank you very much.
My best regards.


2014-03-01 1:02 GMT+01:00 Francisco Lopez de la Franca <
[log in to unmask]>:

> Sorry for the troubles, but I've re-read the manual several times and it
> doesn´t clarify my question.
> In genetic algorithms, evolution strategies, etc, it is specified a
> probability of doing recombination, and another one of doing mutation. And,
> I want to do the same for genetic programming, an I don´t see the way to do
> it in ECJ.
> Thank you anyway.
> Regards.
>
>
> 2014-02-28 14:35 GMT+01:00 Sean Luke <[log in to unmask]>:
>
> I think you need to read up on parameter bases in ECJ.  See the manual's
>> section on parameters and parameter databases.
>>
>> Sean
>>
>> On Feb 28, 2014, at 2:26 AM, Francisco Lopez de la Franca <
>> [log in to unmask]> wrote:
>>
>> > I want to specify the probability of performing mutation and the same
>> for crossover. How do I specify it for each operator?
>> > I've seen the following parameters and I don`t know which one to use:
>> >
>> > <Bass>.likelihood
>> > pop.subpop.0.species.pipe.source.0.prob
>> > gp.koza.xover.prob
>> > pop.subpop.0.species.mutation-prob
>> > pop.subpop.0.species.crossover-prob
>> >
>> > Additionally, I'd like to know the type of mutation and crossover
>> applied in the run. How do I know them?
>> >
>> > Thanks a lot.
>> >
>> >
>> > 2014-02-27 15:22 GMT+01:00 Sean Luke <[log in to unmask]>:
>> > If you want to specify the probability whether a given operator
>> performs mutation (say) or just copies parents and returns them, the
>> parameter you're looking for is 'likelihood'.
>> >
>> > If you want to specify the probability of doing mutation type 1 versus
>> mutation type 2 versus crossover or whatever, the tool you want is called
>> ec.breed.MultiBreedingPipeline.
>> >
>> > Sean
>> >
>> > On Feb 27, 2014, at 6:50 AM, Francisco Lopez de la Franca <
>> [log in to unmask]> wrote:
>> >
>> > > Hi.
>> > >
>> > > I'd like to know how it's specified in the params file the
>> probability of carrying out the recombination and mutation in genetic
>> programming. (I think recombination is called in GP crossover, isn't it?).
>> > >
>> > > Thanks.
>> >
>>
>
>