How to statistically determine how much two curves are different?
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Hi,
I have two curves with diferent X and Y but the shape are similar. I would like to determin in percentagem or some number how they look like.
I tried Kolmogorov-Smirnov test in matlab but the problem is that my curve has different dimensions as well. One is 1x1001 and the other is 1x1000000.
Attached are the two data if it is helpfull.
Thanks for any help.
Regards,
Taynara
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darova
le 4 Fév 2021
Modifié(e) : darova
le 4 Fév 2021
clc,clear
x1 = 0:0.2:4; % fine mesh
x2 = 0:0.5:4; % coarse mesh
y1 = sin(x1); % fine data
y2 = sin(0.9*x2); % coarse data
y22 = interp1(x2,y2,x1); % create better data (interpolation)
plot(x1,y1,'.-r')
hold on
plot(x2,y2,'.-b')
plot(x1,y22)
plot([x1; x1],[y1; y22],'-b')
hold off
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/509527/image.png)
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