Non-visible functions are asterisked
short answer: non-visible means that they are not exported from a package with a namespace so that they are "not found" if you just type the name. However, you can see these functions if you use getAnywhere(fname) longer answer: see the section on namespaces in the writing R extensions manual.
On Mar 8, 2008, at 9:48 AM, Muenchen, Robert A (Bob) 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: muenchen at utk.edu Web: http://oit.utk.edu/scc Map: http://www.utk.edu/maps News: http://listserv.utk.edu/archives/statnews.html =========================================================
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