How do I pull data from a figure with multiple plots?
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I have a Matlab figure with 3 plots on it and I am trying to pull 'YData' from just one of the plots. I am trying to use the following:
h=findobj(gca,'Type');
y=get(h,'YData');
I do realize that this is only picking the YData from one plot but I do not know the plot naming structure or how to select between plots in one figure to pull data. How can I do this?
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Accepted Answer
per isakson
on 13 Feb 2015
Edited: per isakson
on 13 Feb 2015
Looks strange too me. Do you use R2014b with the new graphic? If on the old graphic try
axh = findobj( gcf, 'Type', 'Axes' );
axh should be a three element vector
y1 = get( axh(1), 'YData' );
Try
get( axh(1) )
get( axh(2) )
get( axh(3) )
to find an appropriate property, the value of which can be used to distinguish between the axes. It might be different on R2014b.
2 Comments
per isakson
on 17 Feb 2015
Edited: per isakson
on 17 Feb 2015
y1 = get( axh(1), 'YData' );   is wrong! Now I cannot see why I included it in the first place. (Maybe, I edited your line without thinking.) My idea was to first spot the axes (diagram) of interest out of the three. Next find the children of that axes.
More Answers (1)
jtnewgard
on 6 Apr 2018
Edited: per isakson
on 6 Apr 2018
I had some trouble grabbing data from subplots using 'get'. Perhaps I was using the wrong indexing in choosing the subplot.
However, something like this:
g=load('soil_strength.fig','-mat');
depth=g.hgS_070000.children(1,1).children(1,1).properties.YData;
Dr=g.hgS_070000.children(1,1).children(1,1).properties.XData;
phi=g.hgS_070000.children(2,1).children(1,1).properties.XData;
depth_check=g.hgS_070000.children(2,1).children(1,1).properties.YData;
Lets you go through ALL the figure data.
Might take some perusing but you'll find what you need in there.
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