BadFitResult-Solution
Last Update: 11/12/2015
The following table illustrates several reasons why the function you are using is not producing a good fit or the fit fails to converge.
Initial Values Incorrect
Refine initial values to better follow your data
Model (Function) is not correct
Review the theory of your experiment
Fitting Stops too soon
Lower the tolerance or increase the number of iterations
Not enough data points
Add more data points
Data too noisy
Apply a filter to your data
Keywords:quality, goodness, chi square, r square, chi-square, r-square, poor, bad