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Thread: How to determine which model fits my non-linear data the best?

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    How to determine which model fits my non-linear data the best?




    I've got SigmaPlot and JMP. What's the best way to go about determining which curve fits my non-linear data the best? What parameters should I be looking at besides R^2?

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    Re: How to determine which model fits my non-linear data the best?

    The best way to determine if the curve fits non-linear data, is to look if it fits. Do the model fit to the data?

    What is the model? Do a scatter plot diagram! Does it fit ?
    (And don't look at R^2.)

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    Re: How to determine which model fits my non-linear data the best?

    SigmaPlot provides a lot of equations that I can use to fit the data. To me, it seems like a lot of them could potentially fit. I was thinking about using AICc but am not sure how to use it in SigmaPlot.

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    Re: How to determine which model fits my non-linear data the best?


    Use visualizations. What is the purpose of fitting the model?
    Stop cowardice, ban guns!

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