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

2014-03-12 Thread David March Morla
Any advice and/or additional references on this issue would be more than welcome. Thank you in advance, David March -- David March Morlà Spatial Ecologist Email: da...@imedea.uib-csic.es IMEDEA Instituto Mediterraneo de Estudios Avanzados (UIB-CSIC) C/Miquel Marquès 21, 07190 Esporles, Balearic

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

[R] Boostrapping

2009-03-05 Thread march
Hi Everybody, I am trying to use the no parametric boostrapping methos to validate a logistic regression model. My idea is to randomly select the observations of a dataset and estimating the coefficients of the model for each random selection. Do you have any idea about that? Please, Let me