[R] Studdy Missing Data, differentiate between a percent with in the valid answers and with in the different missing answers

2008-03-02 Thread Ericka Lundström
Hi R experts I'm trying to emigrate from SPSS to R, thou I have some problems whit getting R to distinguish between the different kind of missing. I want to distinguish between data that are missing because a respondent refused to answer and data that are missing because the question

Re: [R] glm: offset

2008-03-02 Thread Ted Harding
On 03-Mar-08 03:19:01, Wensui Liu wrote: HI, John, my understanding is that you should use log(...) instead of its original scale. Below is the logic in the case of poisson reg. log(y / offset) = x'b = log(y) - log(offset) = x'b = log(y) = x'b + log(offset) Well, this is where it gets

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