export x and y data from a matlab plot into a matrix

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how do I extract the x y data from a matlab figure? Thank you.

Answers (3)

Honglei Chen
Honglei Chen on 16 Feb 2012
Edited: John Kelly on 27 May 2014
You need to access XData and YData property, for example:
h = plot(1:10);
get(h,'XData')
get(h,'YData')
Here is a handy tool to find out the handle graphics properties
  1 Comment
Baba
Baba on 16 Feb 2012
What if I don't have access to h? and just have a plot in front of me that pops up due to some code running?

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Image Analyst
Image Analyst on 16 Feb 2012
If it just recently popped up, and you can run some code to get to it before focus switches to some other figure, then you can use gca or gcf for the handle.

Patrick Kalita
Patrick Kalita on 16 Feb 2012

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