Saving generated splines

[fatemehkp]

Hi,

How can I save the spline "spl" generated by code below? (Line three)

ods select ANOVA ParameterEstimates SplineKnots;
proc glmselect data=sashelp.cars;
effect spl = spline(weight / details naturalcubic basis=tpf(noint)
knotmethod=percentiles(5) );
model mpg_city = spl / selection=none; /* fit model by using spline effects */
output out=SplineOut predicted=Fit; /* output predicted values for graphing */
quit;

Thanks,

Fatemeh

[Rick_SAS · Accepted solution]

Use the OUTDESIGN= option on the PROC GLMSELECT statement. For details and an example, see the section "Write the spline basis functions to a SAS data set" in the article "Regression with restricted cubic splines in SAS"