Y-axis lim with Bar/Line overlay

Hello,

I've made a 2 series bar graph with a line graph overlay. For the purposes of the data, both Y-axis need to be the same. I am able to set the line graph axis to the bar graph YLim but not the other way around.

Sometimes the line graph has larger Y values than the bar graph and it therefore gets cutoff. I would like to be able to detect which YLim should be used and make them both the same. How can this be done?

Current code is below.

Thank you!

figure;
h_bar = bar(_data(:,1),Y);
set(gca, 'XTick',_data(:,1));
set(gca, 'XTickLabel', _data(:,1));
h1 = gca;
h2 = axes('Position',get(h1,'Position'));
plot(_data(:,1),Y2,'LineWidth',2,'Color','red')
set(h2,'YAxisLocation','right','Color','none','XTickLabel',[])
set(h2,'XLim',get(h1,'XLim'),'Layer','top')
set(h2,'YLim',get(h1,'YLim'),'Layer','top')

Answer 1

[Matt Tearle]

figure;
h_bar = bar(_data(:,1),Y);
set(gca, 'XTick',_data(:,1));
set(gca, 'XTickLabel', _data(:,1));
h1 = gca;
h2 = axes('Position',get(h1,'Position'));
plot(data,Y2,'LineWidth',2,'Color','red')
set(h2,'YAxisLocation','right','Color','none','XTickLabel',[])
set(h2,'XLim',get(h1,'XLim'),'Layer','top')
% Query both axes' y-limits
yl = [get(h1,'YLim');get(h2,'YLim')];
% Find the lower and upper limits of both
yl = [min(yl(:,1)),max(yl(:,2))];
% Set y-limits for both axes
set(h1,'YLim',yl)
set(h2,'YLim',yl)

[tmd]

Matt, Thanks for the response. The code you provided does not work as intended. The reason I believe is because the line plot axis (h2) is originally being set to be equal to h1. However, your response did inspire a less elegant solution that seems to be working.

if max(_data(:,1) > Y

Y_Lim = max(_data(:,1)) + 2;

set(gca,'YLim',[0 Y_Lim]);

end

Thanks again!