SAS MACRO SPMM to fit smoothing splines mixed
models.
SAS Code for calculating a cubic smoothing spline using PROC MIXED
using the diabete data
SAS Macro GAMM1 to fit generalized additive mixed
models using
smoothing splines.
References:
- Zhang D., Lin X., Raz J., and Sowers M. (1998).
Semiparametric stochastic mixed models for longitudinal data,
Journal of the American Statistical Association,
93, 710-719.
- Lin X. and Zhang D. (1999).
Inference in generalized additive mixed models using smoothing splines,
Journal of the Royal Statistical Society, Series B,
61, 381-400.
- Zhang D., Lin X. and Sowers M. (2000).
Periodic semiparametric regression for
longitudinal hormone data from multiple menstrual cycles.
Biometrics,
, 56, 31-39.
Diabetes Data
Variable Names (text file)
Data (ascii file)
Longitudinal Respiratory Infection Data
Variable Names (text file)
Data (ascii file)