Date: Thu, 18 Jun 1998 19:55:12 +0200 Message-Id: <199806181755.TAA17186@sophie.ethz.ch> From: Martin Maechler <maechler@stat.math.ethz.ch> To: r-help@stat.math.ethz.ch Subject: Re: Significance stars (was Re: R-beta: glm bug) >>>>> "Jim" == Jim Robison-Cox <jimrc@mathfs.math.montana.edu> writes: Jim> On Thu, 18 Jun 1998, Jim Lindsey wrote: (snip) >> I might also say that I strongly object to the stars and >> significance levels in summary (sorry, Martin, we already discussed >> this). I consider fixed level testing to be bad statistics; at >> worst, a P-value should be given if nothing better (confidence or >> credibility intervals) is available. I do not want my students >> seeing such stars and fixed levels. Make it an option if you like >> but not the default display with summary(). Jim Jim> I agree! Is there a good way to set an option which goes to a Jim> print method (in this case print.summary.lm)? Would it have to be Jim> a global option? R> str(print.summary.glm) function (x, digits = max(3, .Options$digits - 3), formatfun = format, na.print = "", symbolic.cor = p > 4, signif.stars = TRUE, ...) R> str(print.summary.lm) function (x, digits = max(3, .Options$digits - 3), symbolic.cor = p > 4, signif.stars = TRUE, ...) Which shows you there IS already an argument to turn off the signif.stars: print(summary([g]lm(....)), signif.stars = FALSE) Jim Lindsey wanted a *global* option so that he can turn it off for all his students when they just use summary([g]lm(....)) Any proposals for a NAME of the global option? JL even looked for a possibility to turn off the P values.. Do we want/need this as well? --------------------------------------------------------------- A few afterthoughts: Note that I introduced those both to print.summary.lm() and ...glm(). We (Statistics ETH Zurich) have been using these stars for about seven years now (in S-plus, not R..), both for teaching and (serious) data analysis. Most of my teaching (and researching) colleagues, many students and consulting customers have made explicit *positive* comments about the stars, (and asked for our S-plus replacement code in order to have it also on their own machines...) and I haven't got any negative ones till both Jim Lindsey's. NOTE: We do *NOT* advocate believing in P-values, (some of you may know how little we believe in normally distributed data here ..), the main point of the sig.stars is a ``graphical summary'' of which coefficients might be significant ~~~~~~~~~~~~~~~~~ Martin Maechler <maechler@stat.math.ethz.ch> <>< Seminar fuer Statistik, ETH-Zentrum SOL G1; Sonneggstr.33 ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND phone: x-41-1-632-3408 fax: ...-1086 http://www.stat.math.ethz.ch/~maechler/ -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._