Suppose that I have a
data and a statistical model that is not the result of fitting, but has a different origin. For example, I have a list of measurements and a theoretical model whose predicting accuracy I want to assess.
Is there a simple way to obtain all the properties of a
FittedModel object, but from my theoretical model?
For example, suppose that
If I call
And I can then get R$^2$ for the adjusted model:
which gives $0.9851$.
But I know the theoretical model is $1.5+x$. Can I have the power of a FittedModel (residuals, ANOVA, RSquared, etc.) for my non-fitted model?