How do I make a boxplot with double y-axis and 4 vectors?

Hello, I want to make a boxplot which has four boxes next to each other of which two should be scaled to the y-axis on the left and two to the y-axis on the right. I do manage to get two y-axes and the correct vectors are scaled to the right y-axis, but the two vectors that belong to the same y-axis are plotted on top of each other instead of next to each other. Does someone know how to resolve this? Thanks in advance!

figure
yyaxis left
boxplot([x1,x2],'Notch','on','Labels',{'Met autonomous','Met dredged'});
yyaxis right
boxplot([x3,x4],'Notch','on','Labels',{'WS autonomous','WS dredged'});

Answer 1

[dpb]

Unfortunately, TMW didn't give the possibility of having x locations for boxplot other than ordinal position of the columns in the input arrays so you have to fudge--

x=randn(100,4);
figure
yyaxis left
boxplot([x(:,1:2) nan(100,2)])
yyaxis right
boxplot([nan(100,2) x(:,3:4)],'labels',{'A ','B ','C','D'})

yields

where the extra NaN are placeholders that aren't plotted.

[Joyce Vlaming]

Thank you, it works exactly the way I want it to now!