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vessel_id80
2006 Nov 26
1
GLM and LM singularities
...m calling is: glm(formula = log(CPUE) ~ Year + Vessel_ID +
SST, data = marlin). A summary of the glm includes the following output:
Coefficients: (1 not defined because of singularities)
Estimate Std. Error t value Pr(>|t|)
Vessel_ID80 -0.54093 0.23380 -2.314 0.021373 *
Vessel_ID83 -0.36499 0.20844 -1.751 0.080977 .
Vessel_ID84 -0.23386 0.19098 -1.225 0.221718
SST NA NA NA NA
Can someone explain the output "Coefficients: (1 not defined because of
singularities)"? What does this mean? I'm guessing that som...