Plotting Multiple Histograms with Increasing Number of Bins

I like to subplot multiple histograms with increasing number of bins. Here is my code:

for j=1:1:6
    for nbins=5:5:30
        subplot(2,3,j)
        histogram(y,nbins);
    end
end

This is the figure that I have been getting. Can you correct my code? I also want to put a title on every subplot .Thank you.

Answer 1

[KSSV]

count = 0 ;
for i = 1:3
    for j = 1:3
        count = count+1 ;
        subplot(3,3,count) 
        plot(rand(3,1))
        title(sprintf('(%s, %s)',num2str(i),num2str(j)))
    end
end