Adaikalavan Ramasamy <a.ramasamy <at> imperial.ac.uk> writes: > > Dear all, > > I used the glm.nb with the default values from the MASS package to run a > negative binomial regression. Here is a simple example: [snip -- thanks for the example!] > The question now is how do I report the results, say, for height? Do I > simply take the anti logs. i.e. 1.019613 = exp(0.019423) ? > > I have seen one paper where they report using anti log base 10 instead > of natural base but they use STATA though. >
Yes, exactly. If you look at ?glm.nb you will see that it uses a log link function, and therefore you should exponentiate (anti-log) to back-transform. Natural, not base-10 logs, are used. Don't forget that back-transforming standard errors by themselves is meaningless, you have to back-transform lower and upper confidence limits ... Ben Bolker ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
