Dear Clara, Thanks for the reply. I am forwarding your message to the list, ok. When I wrote was a way of get further information to help the helpers.
happy holidays, milton ---------- Forwarded message ---------- From: Clara Brück <clara_bru...@web.de> Date: 2009/12/30 Subject: Re: [R] Negbin Error Warnings To: milton ruser <milton.ru...@gmail.com> Dear Milton, Thanks for your email. I ran the NBR-model and then tried to compute the first differences of some expected values: m3.x1 <-setx(m3, advisory=1) m3.x2 <-setx(m3, advisory=0) m3.s1 <-sim (m3,x=m3.x1, x1=m3.x2) However, I then get 50 error warnings, and there all like this: In rpois(k, (mu * rgamma(k, theta))/theta) : NAs produced Bests Clara > -----Ursprüngliche Nachricht----- > Von: "milton ruser" <milton.ru...@gmail.com> > Gesendet: 30.12.09 15:06:04 > An: Clara Brück <clara_bru...@web.de> > CC: r-help@r-project.org > Betreff: Re: [R] Negbin Error Warnings Dear Clara, > > could you, please, share the summary() of your data. > > bests > > milton > > 2009/12/30 Clara Brück <clara_bru...@web.de> > Hi, > > I ran a negative binomial regression (NBR) using the Zelig-package > and the negbin model. > When I then try to use the simumlation approach using the setx () and > sim() functions to calculate expected values > and first difference for different levels of one of my independent > variables, I get 50 errors warnings, telling me that the calculation > rpois produced NAs. However, the data I use doesn't have any NAs. > Does this mean that the NBR-model is the wrong model for this data? > > Thanks in advance. > > ___________________________________________________________ > Preisknaller: WEB.DE <http://web.de/> DSL Flatrate für nur 16,99 Euro/mtl.! > http://produkte.web.de/go/02/ > > ______________________________________________ > 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-<http://www.r-project.org/posting-> > guide.html > and provide commented, minimal, self-contained, reproducible code. > > > ___________________________________________________________ Preisknaller: WEB.DE <http://web.de/> DSL Flatrate für nur 16,99 Euro/mtl.! http://produkte.web.de/go/02/ [[alternative HTML version deleted]]
______________________________________________ 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.
