[R] Multiple comparisons with a glm

2003-11-05 Thread Ken Knoblauch
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
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Re: [R] Multiple comparisons with a glm

2003-11-05 Thread Achim Zeileis
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.

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Re: [R] Multiple comparisons with a glm

2003-11-05 Thread Torsten Hothorn

 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: [EMAIL PROTECTED]

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 [EMAIL PROTECTED] mailing list
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