[R] LM/two way analysis/classic parametrisation

David Winsemius dwinsemius at comcast.net
Sat Jun 4 18:16:47 CEST 2011


On Jun 4, 2011, at 10:33 AM, kfl wrote:

> I will be pleased to know, how to get the classic parametrisation in  
> a two
> way analysis of varians:
>
> Classic parametrisation:
> Observed = intercept + row-effect + col-effect+ error, where sum af
> row-effect=0 and sum of col_effect=0

?contrasts # which has a link to contr.sum

-- 
David Winsemius, MD
West Hartford, CT



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