[R] AOV in MASS not the same??

[Peter Ho]

Thanks to Andy, Patrick and Prof. Ripley for reply to my query. Having 
read MASS's section on contrasts, I now understand where I went wrong.

Peter

ripley at stats.ox.ac.uk wrote:

>On Tue, 6 Aug 2002, Peter Ho wrote:
>
>  
>
>>I would appreciate it if someone could explain the results of the
>>example from the aov() help file. The output given below is different
>>from book
>>Venables and Ripley -  MASS
>>    
>>
>
>You forgot to set the the contrasts!
>
>  
>


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