How to find curve fitting coefficients

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sewek
sewek 2018-7-4
回答： Etsuo Maeda 2018-7-11
Hi Can you advise how I can generate curve fitting coefficients using a curve fitting relationship: E=A*(X-B)^C+D for known X and Y (E=lnY), so I am looking for A,B,C,D of relationship: Y=EXP(A*(X-B)^C+D) for known X,Y. Can I use Curve Fitting ToolBox ?

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Etsuo Maeda
Etsuo Maeda 2018-7-11
x = lsqcurvefit(fun,x0,xdata,ydata) % in Optimization Toolbox
or
x = fminsearch(fun,x0) % in MATLAB
may help you to solve Y = EXP(A*(X-B)^C+D)
HTH

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