How to use SAS® Proc Traj and SAS® Proc Glimmix in respiratory epidemiology Arrandale, Victoria; Koehoorn, Mieke; MacNab, Ying; Kennedy, Susan M.
This document outlines the use of two procedures capable of modeling repeated respiratory symptom data in the software package SAS®: Proc Traj and Proc Glimmix. SAS® Proc Traj is a discrete mixture model which models the patterns of change over time in multiple subgroups within the population. SAS® Proc Glimmix is a procedure that fits a generalized linear model to non-linear outcome data either with or without random effects.
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