Xtick location is not correct

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MINA
MINA 2016-6-1
评论： dpb 2016-6-2
Hello,
I have two plots on one figure, which is shown in the attachment. The X tick for both of the the plots should be in the same location but they are not. Could someone please help me how I can fix this problem.
Thanks
  2 个评论
MINA
MINA 2016-6-1
编辑：dpb 2016-6-2
ax1 = gca;
get(ax1,'Position');
set(ax1,'XColor','white',...
'YColor','white',...
'XTick',[],'XTickLabel',[]);
set(get(ax1, 'Ylabel'), 'String', 'Trials #','fontsize',10);
set(get(ax1, 'Xlabel'), 'String', 'Time (s)','fontsize',10);
ax2 = axes('Position',get(ax1,'Position'),...
'XAxisLocation','top',...
'YAxisLocation','right',...
'Color','none',...
'XColor','white',...
'YColor','white',...
'XTick',[0:16],'XTickLabel',[0:16]);
set(get(ax2, 'Ylabel'), 'String', 'Average Speed (cm/s)','fontsize',10);
dpb
dpb 2016-6-2
ax1 = gca; % be better to
ax(1)=axes; % create axes/save handle instead of gca
set(ax(1),'XColor','white',...
'YColor','white',...
'XTick',[],'XTickLabel',[]);
ylabel(ax(1),'Trials #','fontsize',10);
xlabel(ax(1),'Time (s)','fontsize',10);
ax(2)=axes('Position',get(ax(1),'Position'),...
'XAxisLocation','top',...
'YAxisLocation','right',...
'Color','none',...
'XColor','white',...
'YColor','white',...
'XTick',[0:16]);
ylabel(ax(2),'Average Speed (cm/s)','fontsize',10);
What you're missing above is setting xlim to match the 'xtick' and then linking the two x-axes
linkaxes(ax,'x') % link the two x-axes to keep in synch
xlim(ax(2),[0 16]) % now set the limits to match where tried put ticks
Also notice used array to hold the handles instead of named variables--this way when need both can use the array name instead of building vector (in, say linkaxes)

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回答（1 个）

dpb
dpb 2016-6-1
You'll have to set the two axes xlim ranges to a consistent set of ticks and range. It's difficult to interpret but I guess both axes are actually time and the Speed is supposed to be a Title, not an axis label? If that is so, look at
doc linkaxes % to connect the two so they stay in synch irregardless of what do to one or t'other.
It's always easier to give more precise information when the code that generated the figure is shown; often experienced users here can spot "issues" causing such problems that aren't so apparent to the neophyte (else't they wouldn't have to be asking now, would they? :) )
  1 个评论
MINA
MINA 2016-6-1
That's right. Both of axes are time and the Speed is the title.

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