Revision

31 Março 2017, 08:30 • NICOLETTA ROSATI

Discussion of exam papers of 9/6/2014 and 26/6/2014.

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Applications and examples

24 Março 2017, 11:30 • NICOLETTA ROSATI

Exponential; Binomial/Poisson for rates. ANOVA. Quasi-likelihood.

Discussion of exam paper of 9/6/2015.

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Applications and examples

24 Março 2017, 08:30 • NICOLETTA ROSATI

Normal, Gamma and F Test.

Discussion of exam paper of 26/6/2015.

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Anova, test of linear restrictions. Exercises Sheet n. 2

22 Março 2017, 09:30 • NICOLETTA ROSATI

R example with Poisson - accidents (Worksheet 10): Use of ANOVA with test "Chi": analysing fit of one model and comparing models. Importance of order of regressors in ANOVA. Test of linear restrictions on parameters.
Discussion of selected exercises from Exercise Sheet n. 2.

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Quasi-likelihood. R examples: Poisson

20 Março 2017, 08:00 • NICOLETTA ROSATI

Example - Worksheet 8 (cont.): Poisson approximation for the modeling of missing persons data. Poisson modeling of rates. Offset.
Introduction to quasi-likelihood estimation. Expression of the likelihood equations for the general and regression models. Choice of mean value and variance functions, and discussion of their suitability. Estimation of the dispersion parameter (cont.). Discussion of Ex. 3 g-h from exam paper of 16/6/2016.
Cloth data example (from Azzalini): quasi-likelihood estimation of a Poisson model with overdispersion. 
R example with Poisson - medals (Worksheet 10): Estimation of a Poisson quasi-likelihood model. Use of ANOVA with test "F".

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