Hi everybody Im triying to develop a GAM using GraspeR, but i have found some problem in grasp.model I always obtain same error: RESPONSE NAME: Aves Error in "[.data.frame"(XXX, , c(1, sX)) : invalid subscript type The data are a vector for response and a vector for predictors. They must be data.frame? -- David Nogu?s Bravo Functional Ecology and Biodiversity Department Pyrenean Institute of Ecology Spanish Research Council