Re: [Gaul-devel] Genetics with fixed initial population

[Stewart A. <ad...@mc...>]

Hi Asier,

> I'm a bit confused about some concepts of the library:
>=20
> Each row of the above matrices it's an individual in the terms that
> starting from this data, each row will evolve. My initial population
> will have 'n_rows' individuals, and each individual 'n_cols' chromosome=
s
> =BFI'm ok?  So I use the ga_genesis_xxx with:
>=20
>     pop =3D ga_genesis_xxx(
>                         n_rows,=20
>                         n_cols,=20
>                         =BFlen_chromo? /* What means this value? */
>    =20
>                         [...]
>                        =20
>                         my_seed_function,
>                         ...
>                         );

Basically, each genome my have multiple chromosomes.  For your purposes,=20
  the best approach is probably:

      pop =3D ga_genesis_xxx(
                         n_rows,   /* n_rows entities in population */
                         1,        /* 1 chromosome per entity */
                         n_cols,   /* n_cols alleles per chromosome */
                         [...]
                         );

I will also suggest that you might get better results if you have more=20
than "n_rows" individuals in the population.  Duplicate some of your=20
columns to fill the extras.

> And other question... I'll sound silly, but I want know what's exactly
> an entity element, what does it mean.

"entity" is the name of the data structure used to describe each=20
individual in the population.  The population is (more clearly)=20
described by the "population" data structure.  The entity data structure=20
contains the chromosome(s) for that individual along with its fitness.

Regards,
Stewart.
--=20
________________________________________________________________________
Stewart Adcock     st...@li...     www.stewart-adcock.co.uk
Dept. Chemistry and Biochemistry, University of California, San Diego,
4234 Urey Hall, 9500 Gilman Drive, La Jolla, CA 92093-0365 USA.
lab: +1 (858) 534 0956 home: +1 (858) 453 2577 mobile: +1 (619) 206 5798