need to use Find function

Question

Muhammad 2015-3-26

0
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https://ww2.mathworks.cn/matlabcentral/answers/191969-need-to-use-find-function

Hello..I already done for this..but when i'm run this program..Lbest should be different answer..but sometimes this program will show or get the same answer for Lbest..so how i need to do with this program by using find function to solve this problem..thank you for your helping me to solve this problem..

% Gravitational Search Algorithm. function [Fbest,Lbest,BestChart,MeanChart]=GSA(F_index,N,max_it,ElitistCheck,min_flag,Rpower)

%V: Velocity. %a: Acceleration. %M: Mass. Ma=Mp=Mi=M; %dim: Dimension of the test function. %N: Number of agents. %X: Position of agents. dim-by-N matrix. %R: Distance between agents in search space. %[low-up]: Allowable range for search space. %Rnorm: Norm in eq.8. %Rpower: Power of R in eq.7.

Rnorm=2;

%get allowable range and dimension of the test function. [low,up,dim]=test_functions_range(F_index);

%random initialization for agents. X=initialization(dim,N,up,low);

%create the best so far chart and average fitnesses chart. BestChart=[];MeanChart=[];

V=zeros(N,dim);

%find function %find(Lbest);

for iteration=1:max_it % iteration

    %Checking allowable range. 
    X=space_bound(X,up,low); 
    %Evaluation of agents. 
    fitness=evaluateF(X,F_index); 
    if min_flag==1
    [best best_X]=min(fitness); %minimization.
    else
    [best best_X]=max(fitness); %maximization.
    end        
    if iteration==1
       Fbest=best;Lbest=X(best_X,:);
    end
    if min_flag==1
      if best<Fbest  %minimization.
       Fbest=best;Lbest=X(best_X,:);
      end
    else 
      if best>Fbest  %maximization
       Fbest=best;Lbest=X(best_X,:);
      end
    end

BestChart=[BestChart Fbest]; MeanChart=[MeanChart mean(fitness)];

%Calculation of M. eq.14-20 [M]=massCalculation(fitness,min_flag);

%Calculation of Gravitational constant. eq.13. G=Gconstant(iteration,max_it);

%Calculation of accelaration in gravitational field. eq.7-10,21. a=Gfield(M,X,G,Rnorm,Rpower,ElitistCheck,iteration,max_it);

%Agent movement. eq.11-12 [X,V]=move(X,a,V);

end %iteration

Hello..I already done for this..but when i'm run this program..Lbest should be different answer..but sometimes this program will show or get the same answer for Lbest..so how i need to do with this program by using find function to solve this problem..thank you for your helping me to solve this problem..