Curve Fitting Toolbox - change algorithm of fit

I'm making an adjustment, using a custom log equation, the following:

y = b * log (x) + c

I wanted to know how to change the default algorithm is the QR factorization for LU factorization, for example?

Answer 1

[Titus Edelhofer]

Hi,

apart from the question why you would like to do this: you always have the option to copy the function in question (here fit.m) to your project folder, rename it to "myfit", search the file for qr and replace accordingly. The renaming is strongly encouraged to make sure that some days/weeks/years later when running some code you don't accidently use the "wrong" algorithm ...

Titus

[Artur M. G. Lourenço]

Hi,

thanks for the help, I actually thought the curve fitting toolbox had a choice of algorithm and it would be necessary to change the function of the pre programmed matlab.

even more.