Transfer data from a figure to variable

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Néstor Monedero 2012-9-6

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Hi,

I'm using Matlab Simulink to simulate the behavior of a electric circuit.

I obtain the average transfer function by using "averaging spectrum analyzer" block. What i need to do is to obtain the data of this average transfer function. I mean, i want to obtain in a vector x the range of frequency and in a vector y the range of gain.

How can i do it?

Thanks in advanced, Néstor

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Azzi Abdelmalek 2012-9-6

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编辑：Azzi Abdelmalek 2012-9-7

在 MATLAB Online 中打开

open axes proprieties of your figure,then click "more proprieties"

select the second plot then click "more proprieties" you will find your data in xdata and ydata
do the same to the third plot

be sur that you select the plot (not only the box)

x=get(gco,'XData');y=get(gco,'YData');

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Azzi Abdelmalek 2012-10-27

在 MATLAB Online 中打开

Néstor, be sur to click on the plot, not just on the windows, you will see your points highlighted. when you are done go to matlab command and write

x=get(gco,'XData');y=get(gco,'YData');

Néstor Monedero 2012-10-27

Thanks Azzi.

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Robert Cumming 2012-9-7

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在 MATLAB Online 中打开

to do it without interacting with the mouse at all you can get to the data through the children of the axes handle: e.g.

figure; 
plot ( magic(10) ); 
axes_children = get ( gca, 'children' );
axes_lines = findobj ( axes_children, 'type', 'line' );
xdata = get ( axes_lines, 'xdata' )
ydata = get ( axes_lines, 'ydata' )