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viollete
Calcite | Level 5

Hi,

 

I want to use two-dimensional p-spline method to forecast death rates for next year. How can I do it using Proc Transreg procedure in SAS? 

 

Thank you.

2 REPLIES 2
Rick_SAS
SAS Super FREQ

You can put multiple variable names inside the PSPLINE transformation:

 

proc transreg data=sashelp.cars(where=(Type^="Hybrid")) plots=all;
model identity(mpg_city) = pspline(Horsepower Wheelbase / nknots=1);
run;
PaigeMiller
Diamond | Level 26

I'm wondering if it is really valid to use a spline to do a forecast. A forecast seems like extrapolation to me, and I doubt that a spline does a good job at that.

--
Paige Miller

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