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factor1
2008 Mar 25
0
Behaviour of interactions in glm
...torB+FactorA:FactorB, FactorA:FactorB -
but whatever I do I always get 6 coefficients.
Really what I would like to do is to ask for FactorA*FactorB less the
entries in the design matrix that I get from FactorA and FactorB. This
would leave me with the design matrix being:
Record Mean FactorA2:FactorB1 FactorA2:FactorB3
1 1 0 0
2 1 0 0
3 1 0 0
4 1 1 0
5 1 0 0
6 1 0 1
If anyone has any advice on how I could make this happen, I'd be very...