Thanks for your help, Henrique! It's the same problem as I stated in my original post. The code works if it runs as a regular R script, but not if it runs within a custom package. Somehow, if the code is in the package, it doesn't "see" the attribute anymore. I don't understand why. I've played around with different imports in my NAMESPACE file, but it didn't help.
On Wednesday, 2. April 2008 14:41, Henrique Dallazuanna wrote: > Work's for me: > > summary(lmer(Reaction ~ Days + (Days|Subject), sleepstudy))@AICtab > > > On Wed, Apr 2, 2008 at 9:36 AM, Benjamin Polak > <[EMAIL PROTECTED]> > > wrote: > > Thanks, but it doesn't work, I get the error message: > > > > 'no slot of name "AICtab" for this object of class "table"' > > > > On Wednesday, 2. April 2008 13:34, Henrique Dallazuanna wrote: > > > You've tried: > > > > > > tab <- [EMAIL PROTECTED] > > > > > > ? > > > > > > On Wed, Apr 2, 2008 at 7:59 AM, Benjamin Polak > > > > <[EMAIL PROTECTED]> wrote: > > > > Hello everybody, > > > > > > > > I have a problem with accessing class attributes. I think it > > > > might be due to namespace access restrictions or something > > > > similar, but I'm unable to figure it out, maybe someone knows > > > > the trick how to do it ... > > > > > > > > I'm trying to extract some information from the summary > > > > object for a model fitted using the lmer function from the > > > > lme4 package: > > > > > > > > smry <- summary(lmer(foo ~ bar ...)) > > > > tab <- attr(smry, "AICtab") > > > > tab$AIC > > > > > > > > When I run this code as a regular R script everything works > > > > fine, tab$AIC has the desired value. But when I try to run > > > > this code from within a package I wrote, tab$AIC is NULL. > > > > > > > > I've tried adding "import(lme4)", "importClassesFrom(lme4)" > > > > and "importMethodsFrom(lme4)" into the NAMESPACE file of my > > > > package, but it didn't help, tab$AIC is still NULL. > > > > > > > > Thanks for any kind of hint! > > > > > > > > Best Regards, > > > > Ben > > > > ______________________________________________ > > 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. -- Dipl.-Inf. Benjamin Polak Forschungsstelle für Business Metrics Universität St. Gallen Guisanstrasse 1a CH-9010 St. Gallen fon: +41 71 224 2138 fax: +41 71 224 2132 http://www.fbm.unisg.ch ______________________________________________ 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.