how can I display number on city locations ?

     figure('Name','City Locations','Numbertitle','on');
        plot(xy(:,1),xy(:,2),'bo');
                     ...........  ........
                     .........  ..........
                 figure(pfig);
            route = best_route([1:n 1]);
            plot(xy(route,1),xy(route,2),'b.-');
            title(sprintf('Total Distance = %1.4f, Iteration = %d',min_dist,iter));

Answer 1

[the cyclist]

You could use the text() function.

>> doc text

for details.

[Sanuj Shukla]

i this segment figure doesnt appear when I use text function.

 for p = 1:population
        d = distance_matrix(pop(p,n),pop(p,1));
        for k = 2:n
            d = d + distance_matrix(pop(p,k-1),pop(p,k));
        end
        total_dist(p) = d;
    end

    [min_dist,index] = min(total_dist);
    dist_history(iter) = min_dist;
    if min_dist < global_min

        global_min = min_dist;

        best_route = pop(index,:);   
            figure(pfig);
            route = best_route([1:n 1]);
            plot(xy(route,1),xy(route,2),'b.-');
            title(sprintf('Total Distance = %1.4f, Iteration = %d',min_dist,iter));

    end
    rand_pair = randperm(population);