[R] LM/two way analysis/classic parametrisation

[David Winsemius]

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