linkaxes(ax,'x') + candle() + automatic adjustment of y limits of subplots

I have a figure with two subplots, which share the same x range but have very different y ranges. I link the x axes with linkaxes(ax,'x'). If I zoom in on, say, the second subplot, the x limits on both plots are changed simultaneously. However, the y limits on the first plot are too wide now, hence I'd like Matlab to do an automatic adjustment/zoom of the y limits for the first subplot. I'd use

linkaxes(ax,'x')
set(ax,'ylimmode','auto')

and the ylims should be reset automatically every time I zoom in on any subplot. But... Matlab doesn't adjust YLim correctly. How can I fix this?

EDIT: In one of the subplots, I call the function candle(). This seems to cause the problems. When I replace candle() by plot(), everything is ok. How to make this work with candle()?

Answer 1

[Azzi Abdelmalek]

 x=0:0.1:10;
 ax(1)=subplot(2,1,1);
 ax(2)=subplot(2,1,2);
 plot(ax(1),t,sin(2*t))
 plot(ax(2),t,2*sin(t))
 linkaxes(ax,'x')

[Herwig Peters]

Your simple example works alright ...

I have 6 subplots linked together, and they don't behave the same as your two subplots ...

[Herwig Peters]

Hm, it seems to be the candle() plot that causes the trouble!

[Azzi Abdelmalek]

why don't you post your code?

[Herwig Peters]

Ok, I've created a small example. Try zooming in on the second plot around x=500.

clear ax

n = 1000;
P.trend = [linspace(1,8,n/2)';linspace(8,2,n/2)'];
P.high = P.trend+rand(n,1);
P.low = P.trend+rand(n,1);
P.close = P.trend+rand(n,1);
P.open = P.trend+rand(n,1);
I.trend = linspace(7,3,n)';
I.high = I.trend+rand(n,1);
I.low = I.trend+rand(n,1);
I.close = I.trend+rand(n,1);
I.open = I.trend+rand(n,1);

ax(1) = subplot(2,1,1);
candle(P.high,P.low,P.close,P.open)

ax(2) = subplot(2,1,2);
candle(I.high,I.low,I.close,I.open)

linkaxes(ax,'x')
set(ax,'ylimmode','auto')

Answer 2

[Ziad Sliti]

You just have to remove the command :

   axis([xmin xmax ymin ymax])

and axis will be adjusted automatically.

[Herwig Peters]

But I don't have the axis() command in my code...