search for: bycatch

Hi all- I fit a zero-inflated Poisson model to model bycatch rates using an offset term for effort. I need to apply the fitted model to a datasets of varying levels of effort to predict the associated levels of bycatch. I am seeking assistance as to the correct way to code this. Thanks in advance! Laura [[alternative HTML version deleted]]

...ason+offset(LogEffort),dist="poisson",link="logit",data=data) I wasn't clear about one aspect of the response to a similar question I recently posted...I apply the predicted model to a new dataset of standard conditions and take the sum to get the total predicted numbers of bycatch: Prediction<-predict(ZIP,newdata=effort,type="response") sum(Prediction) Do I first need to exponentiate before taking the sum as in: Prediction<-exp(predict(ZIP,newdata=effort,type="response")) sum(Prediction) Thanks again in advance! Cheers, Laura [[alternativ...