I have a set of experimental data in form of a parameter as a function of the other, keeping certain conditions constant. How do I know the best curve that fits the data?
2 views (last 30 days)
Show older comments
I'm new to MATLAB. I already used excel to check what fit is best for the data. Exponential and Polynomial seem to be better than linear fit. Is there a way I can use MATLAB to know which one is perfect for my data? Any code or tips?
0 Comments
Answers (1)
darova
on 14 Sep 2021
Use fit
x = 0:0.1:2;
y = x.^2 + 0.2*rand(size(x));
f = fit(x(:),y(:),'poly2');
plot(x,y,'.r')
line(x,f(x))
legend('original data','fitted function')
0 Comments
See Also
Categories
Find more on Get Started with Curve Fitting Toolbox in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!