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...************************************************ Political Methodology E-Mail List Editors: Melanie Goodrich, <melaniegoodrich at nyu.edu> Delia Bailey, <dbailey at wustl.edu> ********************************************************** Send messages to polmeth at artsci.wustl.edu To join the list, cancel your subscription, or modify your subscription settings visit: http://polmeth.wustl.edu/polmeth.php _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/...

Hello, I am considering giving a talk at my university on R to (mostly) academics. There wouldn't be any statisticians, but professors from mathematics, psychology, economics, etc. who do use some statistical software in teaching and/or research, and have an acquaintance with procedures and graphics used in statistics. Has anyone given such a talk to a similar audience? If so, I would be

...problem of negative intracluster correlation in the case of a binomial response variable (also known as under-dispersion). Prentice (1986) (http://www.jstor.org/stable/2289219) developed an extension of the beta-binomial model which allowed for this negative correlation. Palmquist (1997)(http://www.polmeth.wustl.edu/media/Paper/palmq97.pdf) developed a module (ebb) for Stata which implemented this solution, but this has since been discontinued and is no longer available on the web. Is there a package in R which implements the extended beta-binomial model or otherwise allows for negative intracluster...

I am using GLM to calculate logit models based on cross-sectional data. I am now down to the hard work of making the results intelligible to very average readers. Is there any way to calculate a psuedo analoque to the R^2 in standard linear regression for use as a purely descriptive statistic of goodness of fit? Most of the readers of my report will be vaguely familiar and more comfortable with