EPIB
612 Advanced
Generalized Linear Models: Correlated Data 4 credits Office
hours by appointment Erica E. M. Moodie Purvis Hall room 38B Phone: 398-5520 (email preferable: first.last@mcgill.ca) |
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Prerequisite: |
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Objectives: |
This aim
of this course is to extend linear model methods for analysis of data
with mean-variance relationships and data with non-iid errors. The class
will
highlight common features of tools for analysis of correlated data with
a focus on longitudinal data,
and to give a |
Content: |
This course will have theoretical content but will focus on applications. Students can use any statistical software they wish; the R software package will be used for in-class illustrations. R is available (free) at http://lib.stat.cmu.edu/R/CRAN. Topics
to be covered are: I. Generalized linear
models - Review regression and inference
Review of independent data
with non-constant variance
Multinomial outcomes (POM, CRM) Overdispersion Approaches to inference - estimating functions (likelihood, quasi-likelihood, empirical variance estimates) II. GLM for correlated continuous data Clustered data,
longitudinal data (repeated measures)
Weighted least squares: maximum likelihood, REML, robust variance Specification & estimation of the covariance matrix Linear mixed models Generalized Estimating Equations (GEE) III. GLM for correlated categorical data Longitudinal data
(repeated measures)
Clustered/multi-level data Multivariate responses Semi-parametric methods: GEE, sandwich variance Likelihood-based methods: GLMM ** CLASS NOTES are available on WebCT ** |
| Texts: | Required
text: Diggle, P.J., Heagerty, P.J, Liang, K.-Y. and Zeger, S.L. (2002). Analysis of Longitudinal Data, Second Edition. Oxford University Press. Additional resource: Collett, D. (2003) Modelling Binary Data, Second Edition. Chapman & Hall In particular: chapters 3, 6-8 and section 10.1 Fitzmaurice, G.M., Laird, N.M. and Ware, J.H. (2004). Applied Longitudinal Analysis, Wiley. Verbeke, G. and Molenberghs, G. (2000). Linear Mixed Models for Longitudinal Data. Springer-Verlag. |
Some tips on report-writing, and some useful references on common errors in analysis and reporting: Altman (1998) Stats in Med 17: 2661-2674, Strasak et al (2007) Swiss Med Wkly 137:44-49, Bacchetti notes. Some handy code and an example for creating LaTeX code for a descriptive table in R, courtesy of a previous student (Ben Rich). |
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