Customising creation function in GA optimisation tool

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Hari
Hari 2016-11-20
评论： Alan Weiss 2016-12-7
Bus route network design problem aims to find an optimal set of routes that satisfies a predefined objective and a set of constraints. This is to be optimized using genetic algorithm. If an initial population of N individuals is to be formed from a set of routes stored as a cell array, is it possible to customize the genetic algorithm optimization tool in Matlab for this?
  1 个评论
Brendan Hamm
Brendan Hamm 2016-11-21
Yes, See the Initial Population options. Once you have read through these and determine what your Initial population is, you can use it by creating your optimoptions structure.
IP = ... % Population MAtrix goes here
options = optimoptions('ga','InitialPopulationMatrix',IP);
x = ga(fitnessfcn,nvars,A,b,Aeq,beq,LB,UB,nonlcon,options)

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Alan Weiss
Alan Weiss 2016-11-21
This example might give you ideas on a possible approach. It is not a direct solution to your problem, but I think it shows that the approach is workable.
Alan Weiss
MATLAB mathematical toolbox documentation
  2 个评论
Hari
Hari 2016-12-7
Will the initial population be always stored as a matrix in matlab of size m x n where m is the population size and n the number of elements in an individual?
Alan Weiss
Alan Weiss 2016-12-7
You don't have to give a complete initial population. In other words, m can be smaller than the population size. See Initial population.
Alan Weiss
MATLAB mathematical toolbox documentation

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