Hi all!
I have built a model to predict interactions with turtles and the model
includes an offset for effort:
ZIP<-zeroinfl(Sturgeon~fMesh+fSeason+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
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
