align problem in multiple axes

I want to plot two lines in one graph (in one subplot, if not in the subplot, there is no problem) and one axes on bottom and left, the other axes on top and right. However, when I add xlabel to one axes system, the two y axis don't match at the bottom line. the code is as follow:

subplot(4,1,4);
line(time,std);
ax1=gca;
set(ax1,'color','none','Xcolor',xcolor,'ycolor',leftcolor,...
  'xminortick','on','yminortick','on','xlim',[t(1),t(2)],...
  'ylim',[0.01,100],'yscale','log');
set(get(ax1,'ylabel'),'string','Std (%)','parent',ax1);
set(get(ax1,'xlabel'),'string','time (s)','parent',ax1);
ax2=axes('position',get(ax1,'position'),'xaxislocation','top',...
  'yaxislocation','right','color','none',...
  'xticklabel','','xminortick','on','yminortick','on',...
  'ylim',[0.01,100],'yscale','log');
%set(get(ax2,'xlabel'),'string','time (s)','parent',ax2);

Could anyone tell me how to solve this problem? Thanks!

Answer 1

[Oleg Komarov]

Have you tried plotyy?

EDIT

What problems you have with plotyy?

With your example:

time = [0.974 1.232 1.342 1.315 1.539 1.654 1.618 1.275 0.764 0.332 0.294 0.451 0.493 0.405 0.278 0.447 0.800 0.965 0.873 0.601 0.340 0.489 0.634 0.661 0.582 0.591 0.659 0.643 0.508 0.332 0.558 0.823 0.836 4.95 4.693 4.522 4.441 4.372 0.526 0.531 0.777 0.951 0.911 0.823 0.498 0.298 0.260 0.306 0.437 0.617 0.646 0.614 0.448 0.285 0.163 0.0950 0.149 0.248 0.338 0.365 0.422 0.435 0.411 0.377 0.241 0.185 0.371 0.529 0.513 0.346 0.271 0.320 0.283 0.338 0.647 0.953 1.099 0.959 0.620 0.333 0.347 0.615 0.709 0.550 0.724 2.011 3.016 2.659 1.991 1.762 1.914 1.202 1.123 0.976 0.863 0.740 0.600 0.488 0.438 0.465 0.563 0.666 0.676 0.597 0.486 0.346 0.288 0.255 0.226 0.261 0.353 0.429 0.454 0.353 0.216 0.191 0.336 0.474 0.567 0.565];
std = [0.974 1.232 1.342 1.315 1.539 1.654 1.618 1.275 0.764 0.332 0.294 0.451 0.493 0.405 0.278 0.447 0.800 0.965 0.873 0.601 0.340 0.489 0.634 0.661 0.582 0.591 0.659 0.643 0.508 0.332 0.558 0.823 0.836 4.95 4.693 4.522 4.441 4.372 0.526 0.531 0.777 0.951 0.911 0.823 0.498 0.298 0.260 0.306 0.437 0.617 0.646 0.614 0.448 0.285 0.163 0.0950 0.149 0.248 0.338 0.365 0.422 0.435 0.411 0.377 0.241 0.185 0.371 0.529 0.513 0.346 0.271 0.320 0.283 0.338 0.647 0.953 1.099 0.959 0.620 0.333 0.347 0.615 0.709 0.550 0.724 2.011 3.016 2.659 1.991 1.762 1.914 1.202 1.123 0.976 0.863 0.740 0.600 0.488 0.438 0.465 0.563 0.666 0.676 0.597 0.486 0.346 0.288 0.255 0.226 0.261 0.353 0.429 0.454 0.353 0.216 0.191 0.336 0.474 0.567 0.565];

[ax, h1, h2] = plotyy(time, std,time,std);
set(ax,'xminortick','on','yminortick','on',...
'ylim',[0.01,100],'yscale','log','ygrid','on','ycolor','k');
set([h1 h2],'Color','b')
set(cell2mat(get(ax,'ylabel')),'string','Std (%)');
set(get(ax(1),'xlabel'),'string','time (s)');

[Chong Hou]

Yes I did try plotyy but there is other problem associated with plotyy.

Answer 2

[Matt Fig]

When I run your code, with some made-up values for time, std, xcolor, leftcolor and t, I don't see any problem.

How about you provide a complete example, one where people don't have to make up values, and put a pause statement in so we can see where the y-axis mismatch happens? Of course your values should be enough to reproduce what you are seeing, but not so long as to make somebody have to scroll for pages...

time = ...
std = ...
xcolor = ...
leftcolor = ...
t = ...
% Plotting code, from first post
pause(2) % Here comes the mismatching
% set xlabel so that the y-axis doesn't match...

[Chong Hou]

Please try this, thanks!

time=[0.974000000000000 1.23200000000000 1.34200000000000 1.31500000000000 1.53900000000000 1.65400000000000 1.61800000000000 1.27500000000000 0.764000000000000 0.332000000000000 0.294000000000000 0.451000000000000 0.493000000000000 0.405000000000000 0.278000000000000 0.447000000000000 0.800000000000000 0.965000000000000 0.873000000000000 0.601000000000000 0.340000000000000 0.489000000000000 0.634000000000000 0.661000000000000 0.582000000000000 0.591000000000000 0.659000000000000 0.643000000000000 0.508000000000000 0.332000000000000 0.558000000000000 0.823000000000000 0.836000000000000 4.95000000000000 4.69300000000000 4.52200000000000 4.44100000000000 4.37200000000000 0.526000000000000 0.531000000000000 0.777000000000000 0.951000000000000 0.911000000000000 0.823000000000000 0.498000000000000 0.298000000000000 0.260000000000000 0.306000000000000 0.437000000000000 0.617000000000000 0.646000000000000 0.614000000000000 0.448000000000000 0.285000000000000 0.163000000000000 0.0950000000000000 0.149000000000000 0.248000000000000 0.338000000000000 0.365000000000000 0.422000000000000 0.435000000000000 0.411000000000000 0.377000000000000 0.241000000000000 0.185000000000000 0.371000000000000 0.529000000000000 0.513000000000000 0.346000000000000 0.271000000000000 0.320000000000000 0.283000000000000 0.338000000000000 0.647000000000000 0.953000000000000 1.09900000000000 0.959000000000000 0.620000000000000 0.333000000000000 0.347000000000000 0.615000000000000 0.709000000000000 0.550000000000000 0.724000000000000 2.01100000000000 3.01600000000000 2.65900000000000 1.99100000000000 1.76200000000000 1.91400000000000 1.20200000000000 1.12300000000000 0.976000000000000 0.863000000000000 0.740000000000000 0.600000000000000 0.488000000000000 0.438000000000000 0.465000000000000 0.563000000000000 0.666000000000000 0.676000000000000 0.597000000000000 0.486000000000000 0.346000000000000 0.288000000000000 0.255000000000000 0.226000000000000 0.261000000000000 0.353000000000000 0.429000000000000 0.454000000000000 0.353000000000000 0.216000000000000 0.191000000000000 0.336000000000000 0.474000000000000 0.567000000000000 0.565000000000000];

std=[0.974000000000000 1.23200000000000 1.34200000000000 1.31500000000000 1.53900000000000 1.65400000000000 1.61800000000000 1.27500000000000 0.764000000000000 0.332000000000000 0.294000000000000 0.451000000000000 0.493000000000000 0.405000000000000 0.278000000000000 0.447000000000000 0.800000000000000 0.965000000000000 0.873000000000000 0.601000000000000 0.340000000000000 0.489000000000000 0.634000000000000 0.661000000000000 0.582000000000000 0.591000000000000 0.659000000000000 0.643000000000000 0.508000000000000 0.332000000000000 0.558000000000000 0.823000000000000 0.836000000000000 4.95000000000000 4.69300000000000 4.52200000000000 4.44100000000000 4.37200000000000 0.526000000000000 0.531000000000000 0.777000000000000 0.951000000000000 0.911000000000000 0.823000000000000 0.498000000000000 0.298000000000000 0.260000000000000 0.306000000000000 0.437000000000000 0.617000000000000 0.646000000000000 0.614000000000000 0.448000000000000 0.285000000000000 0.163000000000000 0.0950000000000000 0.149000000000000 0.248000000000000 0.338000000000000 0.365000000000000 0.422000000000000 0.435000000000000 0.411000000000000 0.377000000000000 0.241000000000000 0.185000000000000 0.371000000000000 0.529000000000000 0.513000000000000 0.346000000000000 0.271000000000000 0.320000000000000 0.283000000000000 0.338000000000000 0.647000000000000 0.953000000000000 1.09900000000000 0.959000000000000 0.620000000000000 0.333000000000000 0.347000000000000 0.615000000000000 0.709000000000000 0.550000000000000 0.724000000000000 2.01100000000000 3.01600000000000 2.65900000000000 1.99100000000000 1.76200000000000 1.91400000000000 1.20200000000000 1.12300000000000 0.976000000000000 0.863000000000000 0.740000000000000 0.600000000000000 0.488000000000000 0.438000000000000 0.465000000000000 0.563000000000000 0.666000000000000 0.676000000000000 0.597000000000000 0.486000000000000 0.346000000000000 0.288000000000000 0.255000000000000 0.226000000000000 0.261000000000000 0.353000000000000 0.429000000000000 0.454000000000000 0.353000000000000 0.216000000000000 0.191000000000000 0.336000000000000 0.474000000000000 0.567000000000000 0.565000000000000];

subplot(4,1,4);

line(time,std);

ax1=gca;

set(ax1,'color','none',...

'xminortick','on','yminortick','on',...

'ylim',[0.01,100],'yscale','log','ygrid','on');

set(get(ax1,'ylabel'),'string','Std (%)','parent',ax1);

set(get(ax1,'xlabel'),'string','time (s)','parent',ax1);

ax2=axes('position',get(ax1,'position'),'xaxislocation','top',...

'yaxislocation','right','color','none',...

'xticklabel','','xminortick','on','yminortick','on',...

'ylim',[0.01,100],'yscale','log');

set(get(ax2,'xlabel'),'string','time (s)','parent',ax2);