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singularities
2006 Apr 19
1
Singularities in glm()
...aken to be 1)
Null deviance: 47365.29 on 495 degrees of freedom
Residual deviance: 574.64 on 487 degrees of freedom
AIC: 4091.8
Number of Fisher Scoring iterations: 4
my question now is why do i get those "singularities" and where do they
come from, i guess because of the singularites i get the NA's, what can
i do here to avoid them?
I think i have done some wrong dummy coding or something like that? By
the way, i have 7 levels and only got estimates for 6 levels, whats
wrong here?
best regards
andreas