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BEST FIT OF SCATTERED DATA

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Giuseppe Degan Di Dieco
Giuseppe Degan Di Dieco am 29 Jun. 2021
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.

Akzeptierte Antwort

KSSV
KSSV am 29 Jun. 2021
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')
  2 Kommentare
Giuseppe Degan Di Dieco
Giuseppe Degan Di Dieco am 30 Jun. 2021
Dear KSSV,
thanks for your promt reply, much appreciated.
I'll test it, and let you know the results.
Best.
Giuseppe Degan Di Dieco
Giuseppe Degan Di Dieco am 21 Jul. 2021
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.

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