MATLAB: Multiple Boxplots on same figure

box plotfigurehold on

I have 3 sets of data that I am trying to display in 3 different boxplots on the same figure.
for example right now I have
A=[16 20 15 17 22 19 17]'
B=[22 15 16 16 16 18]'
C=[23 9 15 18 13 27 17 14 16 15 21 19 17]'
Other answered questions have the same about of data in each set where as I have 3 different sized sets of data.
I've tried using figure, and hold on but I still can't seem to format this correctly
Thank you

Best Answer

Here is one way:
A = [16 20 15 17 22 19 17]';
B = [22 15 16 16 16 18]';
C = [23 9 15 18 13 27 17 14 16 15 21 19 17]';
group = [    ones(size(A));
         2 * ones(size(B));
         3 * ones(size(C))];
figure
boxplot([A; B; C],group)
set(gca,'XTickLabel',{'A','B','C'})
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