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Issues with regression using months

Capture.PNGI am not sure what is causing the parameters to group the way they are. I am trying to predict attendance eventually based on the prediction expression from the regression.Capture2.PNGThis expression uses various positive and negative coefficients based on the different parameters multiple times. I understand how to do a prediction by hand from this but this makes the prediction profile practically unusable. Am I doing anything wrong or do I just have to go forward hand calculating my prediction?


Thank you


Re: Issues with regression using months

Did you use the Stepwise platform to select the model? It uses a unique parameterization or coding that is not used in any other platform, such as Fit Least Squares.


Please see this explanation.

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