Hi,
I have a panel data sample and I analyzed an additive relationship between the independent variables using the following statement:
proc panel data=panel;
model A =B C /FIXONETIME ;
id name year;
run;
Now, I would like to analyze a polynomial relationship between the explanatory variables using the following model: A = B + B*C.
When I try to do this using PROC PANEL, there is a need for a CLASS variable, but the consideration of B and C in the CLASS statement does not produce proper results.
What statement should I use?
Thank you in advance.
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