Curve Fitting - X &Y data

I have x and y. Image attached

How can I do at least three different curve fits that are appropriate for the data?

[dpb]

Start by plotting...sounds like homework???

Answer 1

[KSSV]

Take this as a demo example. In T and mu, you have to enter your data. Read about plot and polyfit.

T = linspace(0,4*pi,10);
mu = sin(T);
% Use polyfit to fit polynomial to the points.
T1 = linspace(min(T),max(T));
figure
hold on
plot(T,mu)
for n = 1:3
    p = polyfit(T,mu,n);
    % Evaluate the polynomial on a finer grid and plot the results.
    mu1 = polyval(p,T1);
    
    plot(T1,mu1)
end
legend({'Original','n = 1 fit','n = 3 fit','n = 3 fit',})

[Abraham]

Thanks