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Hello, The estimate of glm dispersion can be based on the deviance or on the Pearson statistic. I have compared output from R glm() to another statastical package and it appears that R uses the Pearson statistic. I was wondering if it is possible to make use R the deviance instead by modifying the glm(...) function? Thanks for your attention. Kind regards, Robin Smit This e-mail and its contents are subject to the DISCLAIMER at http://www.t...

...either in the gamma family. As the Pearson and deviance estimates agree for the gaussian, that does leave begging the question of why you want to do this. Further, McCullagh & Nelder have general arguments why the Pearson estimate might always be preferred to the deviance one. So that `another statastical package' appears to need justification for its choice. On Mon, 11 Jul 2005, Smit, R. (Robin) wrote: > The estimate of glm dispersion can be based on the deviance or on the > Pearson statistic. > I have compared output from R glm() to another statastical package and >...

MY REQUIREMENT: I have a database and i want to connect to the database through R Project and using the tables from the database i need to generate the reports. can anyone plese tell me whether this is possible with R project or not. Thanks in advance Chinna. -- View this message in context: http://n4.nabble.com/Generating-reports-from-database-tp1564238p1564238.html Sent from the R help