Hi,
Here is an example of how you can use the bar function to display bar charts of multiple variables with respect to a single variable.
data = [randi([1 3], 5, 1) randi([1 3], 5, 1) randi([1 3], 5, 1) randi([1 3], 5, 1) randi([1 3], 5, 1)];
x = (1:5)';
multibar = bar(x,data);
set(multibar(1), 'FaceColor','r')
set(multibar(2), 'FaceColor','b')
set(multibar(3), 'FaceColor','g')
set(multibar(4), 'FaceColor', 'y')
set(multibar(4), 'FaceColor', 'w')
