How many observations are needed for Bivariate Fit Line Report?

Question

Hello,

I noticed that my Bivariate analysis is not providing a summary of fit and ANOVA for data sets with 3 observations. You can see in the Image below that some information is missing, notably the F Ratio and p value for the ANOVA section. Is it possible to make JMP run this analysis with just 3 data points? I am able to do it in other statistical software (GraphPad Prism).

Bill_Worley · Accepted Answer

@DanAlexander the particular instance you share has no variation (R-square =1  and RMSE = 0).  The F-ratio is calculated as the the Model Mean Square/Error Mean Square and in this case it would be undefined (18/0).  Do you see this same behavior when your model does show variation for fitting three points?