Extract data points from bodemag plot
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Looking for a way to extract the data points of the magnitude from a bodemag plot. How can this be done?
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Star Strider
2022 年 9 月 25 日
it would likely be easier to use the approach bode in Obtain Magnitude and Phase Data. (Remember to use the squeeze function with those, if necessary.)
This seems to work —
H = tf([1 0.1 7.5],[1 0.12 9 0 0]);
bodemag(H)
Ax = gca;
% get(Ax)
Lines = findobj(Ax, 'Type','Line');
% L1 = Lines(1);
L2 = Lines(2);
X = L2.XData
Y = L2.YData
.
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