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Re: get fit coefficients from fitting result
Posted:
May 25, 2013 6:54 PM
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Hi! I have read the help of coeffvalues but I don't find how to assign to a variable the coefficients' errors that are the numbers in (,)...for example in Ben Timney's post for p2 are (-25.09, -21.93). Does anyone know a way to do it?
thanks
Gabriele
"Steven Lord" <slord@mathworks.com> wrote in message <bkf9mn$9g8$1@ginger.mathworks.com>... > Ben Timney wrote: > > This is probably really simple, but does anybody know how to get the > > fit coefficient values from the fit result object created by the > > curve fitting toolbox? > > Use COEFFVALUES. > > >> fittedmodel1 > fittedmodel1 = > Linear model Poly2: > fittedmodel1(x) = p1*x^2 + p2*x + p3 > Coefficients (with 95% confidence bounds): > p1 = 0.006541 (0.006124, 0.006958) > p2 = -23.51 (-25.09, -21.93) > p3 = 2.113e+004 (1.964e+004, 2.262e+004) > >> coeffvalues(fittedmodel1) > ans = > 0.00654113049422132 -23.5097459954293 > 21129.5921192366 > > *snip* > > -- > Steve Lord > slord@mathworks.com > >
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