Ploting equation and experimental data in the same plot

2015 9 6
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更新时间：2015 9 7
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Hi. I had a very long differential equation and solved it using ode45. Now there is an excel file with experimental data. How can I plot the equation and experimental data in the plot to see if they fit? Thank you.

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Star Strider
Star Strider 2015-9-6

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Use the xlsread function to read the Excel file. Then plot your results on the same axes you plot your ODE solution on.
Hypothetical code might be something like this:
d = xlsread(filename);
time = d(:,1);
data = d(:,2);
. . .
[t,y] = ode45( . . . );
. . .
figure(1)
plot(t, y)
hold on
plot(time, data)
hold off
grid

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