what does line9 ( Newsol.x=p​op(S).x.*(​1-Cr)+sol.​x.*Cr; ) do?

1- function sol=CrossOver(Kw_Kgb,gpop,sol,nvar,pop,data) 2- Newsol=sol; 3- Npop=length(pop); 4- C_rate = 0.8 + 0.2*(sol.fit-gpop.fit)/Kw_Kgb; 5- Cr = rand(1,nvar) < C_rate ; 6- % Random selection of Krill No. for Crossover 7- S = randi([1 Npop]); 8- % Crossover scheme 9- Newsol.x=pop(S).x.*(1-Cr)+sol.x.*Cr; 10- Newsol=fitness(Newsol,data);

11- if Newsol.fit<sol.fit 12- sol=Newsol; 13- end

14- end

Answer 1

[Ganesh Hegade]

Hi,

Line number 9 just assigns new vales to Newsol.x. It means the output sol.x will have a new value (Newsol.x)

function sol=CrossOver(Kw_Kgb,gpop,sol,nvar,pop,data)
    Newsol=sol;
    Npop=length(pop);
    C_rate = 0.8 + 0.2*(sol.fit-gpop.fit)/Kw_Kgb;
    Cr = rand(1,nvar) < C_rate ;
    % Random selection of Krill No. for Crossover
    S = randi([1 Npop]);
    % Crossover scheme
    Newsol.x=pop(S).x.*(1-Cr)+sol.x.*Cr;
    Newsol=fitness(Newsol,data);
    if Newsol.fit<sol.fit
        sol=Newsol;
    end
end