Hi, How can I write the code using PROC GAM for y=s1(x1)+s2(x2), where the intercept and linear terms are suppressed? I have tried using model option noint but it gave error. proc gam data=mydata; model y = spline(x1) spline(x2) / noint; output out=pred predicted=f; run; The error message shows model statement didn't recognise noint option. Please help. Thank you.
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