y = A1*exp((x-y*F)/v)+ A2*exp((x-y*F)/(2*v))+(x-y*F)/R
I have been trying to fit this function using the nonlinear curve fitting. v is fixed. Indpt variable is x and dependent variable is y.
The variable parameters are F, A1, A2 and R. However, my value of F does not iterate at all and it always churns out the same value whenever I complete the FitNL. The other values of A1, A2 and R are good though. Is there a problem with the way I write the function.
My function form of Y-script or equation works.
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