function    best_control=compare_candidates(start,candidates,H,u,rsss_parameters,yr,sigma)
%hledam minimum
rinott=3;
student=5;

%n0 prvnich realizaci
realization1=zeros(size(candidates,1),rsss_parameters.n0);
for i=1:size(candidates)
    for j=1:rsss_parameters.n0
        realization1(i,j)=generate_realization(start,candidates(i),H,u,sigma,yr);
    end
end

%pomocne veliciny
mean_values=mean(realization1,2);
variances=sum((realization1-mean_values*ones(1,rsss_parameters.n0)).^2,2)/(rsss_parameters.n0-1);
W=student*sqrt((variances*ones(1,size(candidates,1))+ones(size(candidates,1),1)*variances')/rsss_parameters.n0);

%selekce kadnidatu pro druhou fazi RSSS
pass=zeros(size(candidates,1),1);
for i=1:size(candidates)
    pom=true;
    for j=1:size(candidates)
       % max(realization1);
       %max(0,W(i,j)-rsss_parameters.delta)
       if (mean_values(i)>10*min(mean_values))
           pom=false;
       end
        if (pom && -mean_values(i)<-mean_values(j)-max(0,W(i,j)-rsss_parameters.delta)) %hledam minimum
            pom=false;
        end
    end
    pass(i)=pom;
end

if sum(pass)>1
    sum(pass);
    %druha faze RSSS
    best_control=0;
    for i=1:size(candidates)
        if (pass(i))
            poc=(-floor(-variances(i)*(rinott/rsss_parameters.delta)^2));
            poc=min(1000,poc);
            realization2=zeros(1,poc);
            for j=1:size(realization2,2)
                realization2(j)=generate_realization(start,candidates(i),H,u,sigma,yr);
            end
            mean_values(i)=mean(realization1(i))+mean(realization2);
            if (best_control && mean_value(i)>mean_value(best_control))
                best_control=i;
            end
        end
    end     
else
    [pom,best_control]=max(pass);
end


end