MATLAB: Bar plot ylim problem

Question

I want to set some blank space in y axis in a bar plot. ylim doesn't work. I just don't want to have a tight ylim plot (I need some blank space above the data, actually).

here is my code:

figure
uu=[6 5 7;8 6 4; 7 5 9];
nm={'DLC','TOU','RTP'};
nmc=categorical(nm);
bar(nmc,(uu))
legend('n','m','k')

here is the result:

Answer 1

ylim() does work.

ylim([0,15]) %at the end of your code; shown in the figure below.

Or you can make it flexible. This line below adds space that equals 10% of your highest bar.

h = bar(nmc, uu); 
maxBar = max(cellfun(@max, get(h, 'YData'))); 
ylim([0, maxBar*1.1])