matlabs plotyy with axis for each plot only on one side

Question

The following code shows my problem. plotyy completely fails if the ticks are not at the same positions on both sides (which is rather the normal case...)

I require a plot with two y axis but the ticks only on one side. I was suggested to use addaxis, but I do not see how that helps me, since I do not want separated axis.

clf;
clc;
xaxis = 0:0.1:25;
ydata1 = linspace(12.1712,12.7679, length(xaxis));
ydata2 = linspace(0.3597,-28.7745, length(xaxis));

[AX,H1,H2] = plotyy(xaxis, ydata1, xaxis, ydata2);

% axis limits - x axis (min to max)
xlimits(1) = min(xaxis); xlimits(2) = max(xaxis);
set(AX, 'XLim', xlimits);
set(AX(2),'XTick',[]);

% y1 axis limits 
ylimits(1) = min(ydata1); ylimits(2) = max(ydata1);
ylimits(2) = ylimits(2) + (ylimits(2)-ylimits(1))*0.05;
set(AX(1), 'YLim', ylimits);

% y2 axis limits 
ylimits(1) = min(ydata2); ylimits(2) = max(ydata2);
ylimits(2) = ylimits(2) + (ylimits(2)-ylimits(1))*0.05;
set(AX(2), 'YLim', ylimits);

% y1 ticks 
set(AX(1),'YTick',[12.0:0.1:12.8]);
% y2 ticks 
set(AX(2),'YTick',[-25:5:0]);

print(gcf, ['-r' num2str(400)], ['test' '.png' ], ['-d' 'png']);

Answer 1

to Matthias,

set the XAxisLocation to top, and disable the XTickLabel. the upper line is back now :)

set(AX(2),'XAxisLocation','top', 'XTickLabel',[])