R help - Dec 2005 - ANCOVA & Post-hoc test

Hello,

Despite my search, I didn't find a post-hoc test for an ANCOVA.

I used the functions aov() and lm() to run the ANCOVA then I tried
TukeyHSD() but it didn't work (because of the covariable is a continuous
variable?).

Furthermore, I would like to plot the adjusted values (i.e. the values of
the tested variable taking into account the covariable).

Thanks for your help!

N. Poulet


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What search terms did you use?  Have you considered the "multcomp"
and "multtest" packages?

	  spencer graves
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to get quicker, more useful replies.

Nicolas Poulet wrote:
> Hello,
> 
> Despite my search, I didn't find a post-hoc test for an ANCOVA.
> 
> I used the functions aov() and lm() to run the ANCOVA then I tried
> TukeyHSD() but it didn't work (because of the covariable is a
continuous
> variable?).
> 
> Furthermore, I would like to plot the adjusted values (i.e. the values of
> the tested variable taking into account the covariable).
> 
> Thanks for your help!
> 
> N. Poulet
> 
> 
> 	[[alternative HTML version deleted]]
> 
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