% -------------------- Roulett Wheel Function ----------------------
function[MatingPool]=Roulette(Generation,N,Selection_rate)
cdf(1)=Selection_rate(1);
for i=2:N
    cdf(i)=cdf(i-1)+Selection_rate(i);
end
for i=1:N
    q=rand;
    for j=1:N
        if q<=cdf(j)
            MatingPool(i,:)=Generation(j,:);
            break
        end
    end
end