Fitting Gompertz Nonlinear Mixed Model to Infancy Growth Data with SAS version 8 Procedure NLMIXED

@inproceedings{Song2001FittingGN,
  title={Fitting Gompertz Nonlinear Mixed Model to Infancy Growth Data with SAS version 8 Procedure NLMIXED},
  author={Cindy Q. Song and Olga M Kuznetsova},
  year={2001}
}
Nonlinear mixed models are an attractive way to describe longitudinal infancy growth data. SAS 8 Procedure NLMIXED [1] provides an easy way to fit the infancy growth data with a non-linear mixed model. In this paper, the longitudinal length measurements on 113 boys and 85 girls taken between 0 and 8 months of age were fit with a mixed Gompertz model using SAS PROC NLMIXED. The model was built starting with fitting the individual curves using PROC NLIN [2]. Then, the non-linear mixed models with… CONTINUE READING