期刊
SOCIOLOGICAL METHODS & RESEARCH
卷 42, 期 4, 页码 608-613出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0049124113503141
关键词
Stata; plugin; group-based; trajectory; models
Group-based trajectory models are used to investigate population differences in the developmental courses of behaviors or outcomes. This note introduces a new Stata command, traj, for fitting to longitudinal data finite (discrete) mixture models designed to identify clusters of individuals following similar progressions of some behavior or outcome over age or time. Normal, Censored normal, Poisson, Zero-inflated Poisson, and Logistic distributions are supported.
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