How to change the color of bars in MATLAB

I draw a bar diagram by MATLAB, it has three groups, that each group includes about 10 bars in different ranges, I want to color each of these 3 groups with 3 different color, could someone help me?

I am so thankful

Answer 1

[Jan]

As you can imagine, other people wanted this also before. Then it is useful to look for existing answers and solutions at first:

http://www.lmgtfy.com/?q=Matlab+bar+color

[ghazale]

I have seen other examples but they are differet, I want to color ranges of bar not just one or specific bar

[Jan]

But ranges of bars consist of a set of specific bars. So I'm convinced that one of the examples can be modified until it matchs your needs. You could e.g. choose the one, which looks most promissing, try to modify it and ask a specific question here again, if problems occur.