Genetic Algorithm forming a Fitness Function

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Sam 2014-1-5

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评论： gagandeep khajuria 2016-4-21

Hi.. i am new to Optimization Problems and specifically Genetic Algorithm.. I have read through all the given literature and have tried some simple practice functions which now seem too simple and straight forward..

My current task is to model a optimization problem with a Fitness Function which has a couple of summations within it. Is there an alternative to write the function without using long for loops? I have attached an example within.

Or where else can i look on guides to write such Fitness Functions?

This is still practice for me to get started on my work ahead.. your help will be much appreciated.

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gagandeep khajuria 2016-4-21

could u tell me the procedure of writing , say five equations of five variables but each equation has its own value(means it can't be taken as any variable) for GA toolbox... will be waiting for ur kind rplyy...thanking u

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Matt J 2014-1-5

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编辑：Matt J 2014-1-5

在 MATLAB Online 中打开

I'm assuming the unknowns are X(k,i,t).

Weighted summations are just matrix-vector multiplications or dot products, which MATLAB is good at, once you've built the relevant matrices. For example, the first summation term you've shown is dot(Q(:), X(:)) where

 [D,I,T]=size(X);
 Q=kron(P(1,1:D), tril(ones(I,T),-1));

I wonder, though, whether GA is the appropriate tool here. Since the whole objective function is linear in X, you should probably be using LINPROG, unless you have weird constraints that you haven't mentioned.