Add xline equivalent to stackedplot?

Hi there,

I recently started using stackedplot instead of subplot, but I'm not sure how to add a line from 0 to my Y-axis-limit while using the stackedplot funciton.

While using subplot in the past, I have been able to use xline(0) or vline(0) to represent a stimulus onset time when comparing evoked responses across a certain timecourse. I.e.

%%%%% Using xline in subplots
close all
time = -150:1:349; %This is time in ms relative to stimulus onset at time 0
maxYval = max(max(PlotThis));
figure
for i = 1:3
    subplot(3,1,i)
    plot(time,PlotThis(:,i));
    hold on
    xline(0)
    ylim([0 maxYval])
end

I would like to use stackedplots instead of subplot because it is much easier to edit and manage when I have several plots with the same x-axis. The one drawback is that stackedplots does not allow the "hold on" feature so xline(0) or vline(0) does not work. I can insert a line in-post on the matlab figure editor, but is there a way to do this programitically?

i.e.

%%% using stackedplot
figure
s = stackedplot(time,PlotThis);
s.AxesProperties(1).YLimits = [0 maxYVal];
s.AxesProperties(2).YLimits = [0 maxYVal];
s.AxesProperties(3).YLimits = [0 maxYVal];

and inserting a line on the matlab figure editor yields:

Thank you!

Answer 1

[Adam Danz]

You can get the axis handles in stackedplot using the undocumented NodeChildren property. Then use xline to add vertical reference lines.

rng('default')
h = stackedplot(-10:10,rand(21,4)); 
ax = findobj(h.NodeChildren, 'Type','Axes');
arrayfun(@(h)xline(h,0,'LineWidth',1.5),ax)

[Brock Carlson]

Adam,

Thank you so much! This is a fascinating work-around. I was able to get this to work with my code.

As a result, I have unaccepted Payas' answer and accepted yours. Should MathWorks create a formal solution in the future I will try to update that here.

[Adam Danz]

Glad I could help.

I just updated the answer with a better way to get axis handles.

Answer 2

[Payas Bahade]

Hi Brock,

Currently there is no xline equivalent in stacked plots. I have informed the concerned teams and they would be looking into this issue.

[Brock Carlson]

Thank you very much! I'll be excited to see updates if they become available.