Then that must be a bug.  I can look into it, but if you want to beat me to it, you might check out FloatVectorSpecies.



Sean



On Jun 3, 2015, at 4:20 AM, Eric Scott <[log in to unmask]> wrote:



> Dear Wizards,

> 

> The JavaDoc for FloatVectorSpecies claims that when using Guassian mutation, "if the gene-by-gene range is used, than the standard deviation is scaled to reflect each gene's range."

> 

> As far as I can tell, however, this doesn't actually happen.  Stepping through the debugger with the following mutation parameters, I can watch DoubleVectorIndividual.gaussianMutation() as it samples from a std of 0.1 when mutation gene 0.  I would have expected it to scale the std to be 0.0001 or such.

> 

> pop.subpop.0.species.min-gene =         -1.0

> pop.subpop.0.species.max-gene =         1.0

> pop.subpop.0.species.min-gene.0 =         -.001

> pop.subpop.0.species.max-gene.0 =         .001

> pop.subpop.0.species.mutation-type =    gauss

> pop.subpop.0.species.mutation-stdev =   0.1

> pop.subpop.0.species.mutation-bounded = true

> pop.subpop.0.species.mutation-prob =    0.03

> 

> Is this an error in the documentation? Or am I missing something?

> 

> Thanks,

> Siggy

> 

> -- 

> 

> Ph.D student in Computer Science

> George Mason University

> http://mason.gmu.edu/~escott8/