It means that the package has not exported it so normally you would not access it directly. For example, for summary.princomp you would normally pass a princomp object to the summary generic.
If you did want to access summary.princomp directly, since it has not been exported, you can use the form stats:::summary.princomp as just summary.princomp won't work. Normally this would not be desirable, though. On Sat, Mar 8, 2008 at 10:48 AM, Muenchen, Robert A (Bob) <[EMAIL PROTECTED]> wrote: > Dear R-Helpers, > > I suspect I'm about to ask a FAQ, but I haven't been able to find an > answer in the FAQ, AItR or an R Site Search. When I look at the methods > of summary (below) it says, "Non-visible functions are asterisked". I > looked at the help file for summary.princomp, which did not comment on > it being non-visible. I ran its help file example, which printed visible > output. I did not notice how it differed from other functions, like > summary.data.frame that is not marked non-invisible. What does the > non-visible mean? > > Thanks, > Bob > > > methods(summary) > [1] summary.aov summary.aovlist > [3] summary.connection summary.data.frame > [5] summary.Date summary.default > [7] summary.ecdf* summary.factor > [9] summary.glm summary.infl > [11] summary.lm summary.loess* > [13] summary.manova summary.matrix > [15] summary.mlm summary.nls* > [17] summary.packageStatus* summary.POSIXct > [19] summary.POSIXlt summary.ppr* > [21] summary.prcomp* summary.princomp* > [23] summary.stepfun summary.stl* > [25] summary.table summary.tukeysmooth* > > Non-visible functions are asterisked > > ========================================================= > Bob Muenchen (pronounced Min'-chen), > Manager, Statistical Consulting Center > U of TN Office of Information Technology > Stokely Management Center, Suite 200 > 916 Volunteer Blvd., Knoxville, TN 37996-0520 > Voice: (865) 974-5230 > FAX: (865) 974-4810 > Email: [EMAIL PROTECTED] > Web: http://oit.utk.edu/scc > Map: http://www.utk.edu/maps > News: http://listserv.utk.edu/archives/statnews.html > ========================================================= > > ______________________________________________ > 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. > ______________________________________________ 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.