Re: [R] Calculating RMSE in R from hurdle regression object

2014-03-12 Thread David March Morla
Dear Tim, I think that in this paper you would find a suite of different metrics to evaluate your hurdle model: Potts, Joanne M., and Jane Elith. "Comparing species abundance models." Ecological Modelling 199.2 (2006): 153-163. Best regards, David March El 12/03/2014 18:55, Tim Marcella escr

[R] fit and predict binomial gbm with two offset terms

2014-03-12 Thread David March Morla
Dear all, I am using the ‘dismo’ package to conduct boosted regression trees (BRT) for both binary and count data. The dismo package uses ‘gbm’ package for the implementation of BRT. I would like to incorporate two offset terms in the model, as well as being able to make predictions. For the c