I've never seen anything written about multiple comparisons, as in the multcomp package or with TukeyHSD, but using a glm. Do such procedures exist? Are they sensible? Are there any packages in R that implement such comparisons? Thank you. -- Ken Knoblauch Inserm U371 Cerveau et Vision 18 avenue du Doyen Lepine 69675 Bron cedex France Tel: +33 (0)4 72 91 34 77 Fax: +33 (0)4 72 91 34 61 Portable: 06 84 10 64 10 email: knoblauch at lyon.inserm.fr
On Wednesday 05 November 2003 17:28, Ken Knoblauch wrote:> I've never seen anything written about multiple comparisons, > as in the multcomp package or with TukeyHSD, but using a glm. > Do such procedures exist? Are they sensible? > Are there any packages in R that implement such comparisons?simint() and simtest() both have methods for "glm" objects. hth, Z> Thank you.
> I've never seen anything written about multiple comparisons, > as in the multcomp package or with TukeyHSD, but using a glm. > Do such procedures exist? Are they sensible? > Are there any packages in R that implement such comparisons?since version 0.4-0 in `multcomp': 0.4-0 (13.08.2003) `simint' and `simtest' now have methods for `lm' and `glm' But you are right that there is not much theory about it (at least to my knowledge). The procedures in `multcomp' allow for inference on parameter estimates which are, asymptotically, multivariate normal with known correlation structure. Best, Torsten> Thank you. > > > -- > Ken Knoblauch > Inserm U371 > Cerveau et Vision > 18 avenue du Doyen Lepine > 69675 Bron cedex > France > Tel: +33 (0)4 72 91 34 77 > Fax: +33 (0)4 72 91 34 61 > Portable: 06 84 10 64 10 > email: knoblauch at lyon.inserm.fr > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > stat.math.ethz.ch/mailman/listinfo/r-help > >