get axis value of a subplot

Question

Max Müller 2014-7-28

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评论： Azzi Abdelmalek 2014-8-11

hey Guys

I ve created a program which creates 9 different subplots with 3 different plot lines. My Questions is: how can i get the x andy values of each subplot.

for example: One of the titles of my plot is simply A. Another is B. How can i get the values in an array which has the same name.

Thanks

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Patrik Ek 2014-7-28

编辑：Patrik Ek 2014-7-28

I think that eval is the way to go then. However, if not absolutely necessary I recommend you to not go there, see alternatives ot eval. One problem is that eval is evaluated in runtime.

Azzi Abdelmalek 2014-8-11

Max , please don't add all these answers, if you want to add a comment , just under my answer or someone else's answer, click on comment on this answer

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Answer 1

Azzi Abdelmalek 2014-7-28

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编辑：Azzi Abdelmalek 2014-7-28

在 MATLAB Online 中打开

% -----Example----------------------
x=repmat((1:10)',1,9);
y=rand(10,9);
for k=1:9
  subplot(3,3,k);
  plot(x(:,k),y(:,k));
end
%------The code-----------------------
h=findobj(gcf,'type','axes');
for k=1:9
  f=get(h(k),'children');
  xi{k}=get(f,'xdata');
  yi{k}=get(f,'ydata');
end
outx=fliplr(cell2mat(xi')');
outy=fliplr(cell2mat(yi')');
%-------------test --------------------
isequal(x,outx)
isequal(y,outy)

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Max Müller 2014-7-28

works perfect...thanks

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Answer 2

Max Müller 2014-8-11

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Hey Azzi,

hope u can help me one more time. ur code works perfect for every normal plot. But if i use it on my Plot, it shows me that my chosen Plot has 42 handles ??????? my Plot contains 41 points. I guess this has to mean sth. Can u pls tell me why my plot has 42 children-handles ?

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Adam 2014-8-11

Sounds like you have plotted each point as its own individual line object

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Answer 3

Max Müller 2014-8-11

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Somehow this must be the case but actually i am ploting a few amount of Arrys into one axes. The x value is always the same and th y value keeps changing...maybe this is the reason... gona check it.