search for: fieldrookery

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2003 Apr 22
0
Correct SE in a poisson model.
...ormally distributed it is correct, but it is overdipersed count data. I make a model > m.poisson <- glm(slugs~field,family=quasipoisson) And I have these coefficients: Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.2429 0.2490 0.976 0.3323 fieldRookery 0.5790 0.3112 1.861 0.0666 . The estimate mean = mean 1.275 = exp(0.2429) 2.275 = exp(0.2429+0.5790) But and the correct standard error of mean? How to obtain this? Exist any function for calculate this? Exist another better measure than SE for non-normal errors (poisson, quasi, binom...