From: Amir on
Let us look at this example:

x = 0:0.01:20;
y1 = 200*exp(-0.05*x).*sin(x);
y2 = 0.8*exp(-0.5*x).*sin(10*x);
[AX,H1,H2] = plotyy(x,y1,x,y2,'plot');

Now how can one reverse x-axis and at the same time in logarithmic scale?
Even using (Tools>Edit plot>Property edittor>Axis) in Figure window is not giving controls on axis of second data sets (x,y2) plot here!