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I have an emperical formula RR = P^x Z^y (a + b *V + c *V^2 ). x,y are regression exponents a,b,c are regression constants P,Z,V are variables such that RR=f(P,Z,V)
I have data that relates RR and P,Z,V. Is it possible to fit this data to this particular formulae using matlab 2011? if so are there any similar tuitorial or helpful videos?
Thank you in advance.
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FMINSPLEAS from the File Exchange would be worth a try
It will let you take advantage of the fact that the equation has a linear dependence on some of your parameters (a,b,c) and nonlinear dependence on other parameters (x,y) to do a more efficient fit.
Your equations are linear in the unknowns a,b,c. Use any MATLAB linear equation solver to find them, e.g.,