How can one pass arguments to a custom CrossoverFunction in ga?

5 次查看（过去 30 天）
Mitsu
Mitsu 2020-11-6
评论： Mitsu 2020-11-6
Hello,
I am implementing a custom crossover function following the documentation.
I need to pass 2 additional variables along with the solution and the rest of the GA-related parameters (parents, options, etc).
The previous doc page refer to "Passing Extra Parameters" to see how to pass additional arguments, and I believe I am doing it the same way it is explained there.
I define the function this way:
function xoverKids = ga_crossover(parents,options,nvars,FitnessFcn,~,thisPopulation,par1,par2)
xoverKids = []; %test
end
And I tell ga() to use it via:
options.CrossoverFcn = @(x) ga_crossover(x,par1,par2);
% (...)
x = ga(ObjectiveFunction,nvars,[],[],[],[],lb,ub,ConstraintFunction,options);
I get the error that there are too many input arguments.
Inside MATLAB's own stepGa.m, the variable options.CrossoverFcnArgs that is passed as argument to the crossover function appears empty, so I think I am not setting up the function+arguments properly in the options.
Could you help me fix this?
Thank you!

请先登录，再回答此问题。

采纳的回答

Matt J
Matt J 2020-11-6
编辑：Matt J 2020-11-6
The CrossoverFcn must accept 5 input arguments,
options.CrossoverFcn = @(parents,options,nvars,FitnessFcn,unused,thisPopulation) ...
ga_crossover(parents,options,nvars,FitnessFcn,unused,thisPopulation,par1,par2)

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Genetic Algorithm 的更多信息

标签

产品


版本

R2018b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by