Need to line up two graphs on same plot

I am using

[AX,H1,H2] = plotyy(time,Y1,time,Y2);

The x-axis(time) are the same for both. The green and blue graphs in the image both end at the same point, but notice how the green graph starts earlier. I want to line both graphs up so that they have the same starting and ending points. For some of the other graphs I've made, it's done by default. I'm not sure what is different with this set of data...

Any help is appreciated. Thanks! :)

Answer 1

[Azzi Abdelmalek]

Maybe your data contains Nan values?

[Benson]

I checked my data and there are no Nan values.

I think the problem is that the plot is using two separate x-axes. If you look closely at the image, there are some additional ticks that shouldn't be there. They are unlabeled because I have set(AX, 'xTickLabel','') in my code. Not sure why it's happening...

[Azzi Abdelmalek]

post your code

[Benson]

figure;
set(0,'DefaultLineMarkerSize',6);
[AX,H1,H2] = plotyy(time,y1,time,y2);
title(['title']);
xlabel('Time (UTC)');
set(AX, 'xTickLabel','')
    set(gca,'XTickLabel',{'00:00','01:00','02:00','03:00','04:00'...
        '05:00','06:00','07:00','08:00','09:00','10:00','11:00'...
        '12:00','13:00','14:00','15:00','16:00','17:00','18:00'...
        '19:00','20:00','21:00','22:00','23:00','24:00'});
set(get(AX(1),'Ylabel'),'String','axistitle','Color','black');
set(get(AX(2),'Ylabel'),'String','axistitle','Color','black') 
set(AX(1),'ycolor','black') 
set(AX(2),'ycolor','black')
set(AX(1),'box','off')
set(H1,'Marker','.')
set(H2,'Marker','.')
legend('legend1', 'legend2')
axis([13 21-Inf Inf]);

[Azzi Abdelmalek]

If you just write

close
[AX,H1,H2] = plotyy(time,y1,time,y2);

What do you get?

[Benson]

Interesting, the axes are lined up the way I want it to be.

[Benson]

So by trial and error, I found that this line is causing the shift. axis([13 21-Inf Inf]);