BEST FIT OF SCATTERED DATA

Hello Beautiful,

I came up with the attached plot of scattered data, and because I'm not so good at fitting techiniques, and less in Matlab,

I wonder if someone can give me some tips on how to best fit the data.

Thanks in advance to everyone, and take care.

Answer 1

[KSSV]

Let (x,y) be your points.

p = polyfit(x,y,1) ;  % change the degree 
yi = polyval(p,x) ;
plot(x,y,'.r',x,yi,'b')

[Giuseppe Degan Di Dieco]

Dear KSSV,

thanks for your promt reply, much appreciated.

I'll test it, and let you know the results.

Best.

[Giuseppe Degan Di Dieco]

Dear KSSV,

thanks for your help.

It was useful, and I used polynomials as fitting functions.

I wonder if novel methods exist to divided data in clusters, and then used and combined different fitting functions along the data pattern distribution.

Best.