Matlab scripting, Customizing Figures

In Matlab scripting, how can I set two different Y-Axis for a s开发者_C百科ingle figure (one on the left and the other on the right side of the figure) ???

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from here : mathworks

plotyy(X1,Y1,X2,Y2)
plotyy(X1,Y1,X2,Y2,function)
plotyy(X1,Y1,X2,Y2,'function1','function2')