Le 16/02/2018 à 10:24, Peter Dalgaard a écrit :
To give a short answer to the original question:
On 16 Feb 2018, at 05:02 , Rolf Turner wrote:
In order to ascribe unique values to the parameters, one must apply a "constraint". With
the "treatment contrasts" the constraint is that
beta_1 = 0
To give a short answer to the original question:
> On 16 Feb 2018, at 05:02 , Rolf Turner wrote:
>
> In order to ascribe unique values to the parameters, one must apply a
> "constraint". With the "treatment contrasts" the constraint is that
> beta_1 = 0.
...and consequently, being a constant
On 16/02/18 15:28, Bert Gunter wrote:
This is really a statistical issue. What do you think the Intercept term
represents? See ?contrasts.
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Bre
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