search for: biomod

Hello I am new in R. I am trying to implement Biomod 2 package. However, I have a doubt. I want to calculate the mean and sd of "Testing.data" (ROC and TSS) > # let's print the ROC scores of all selected models > myBiomodModelEval_55["ROC","Testing.data",,,] RUN1 RUN2 RUN3 RUN4 RUN5 RUN6 RUN7 RUN8...

Dear, I am a newbie to R. I am trying BIOMOD to simulate species distributions with presence-only data. As the presence-only data consist of three columns, presence, longitude, latitude, please kindly share how to prepare the background data (maybe using ArcGIS ?) Thank you Elaine [[alternative HTML version deleted]]

...om>>: > > Thank you for the information. > > Regards, > > Lara Silva > > 2017-10-21 4:40 GMT+00:00 Rui Barradas <ruipbarradas at sapo.pt > <mailto:ruipbarradas at sapo.pt>>: > > Hello, > > This is because myBiomodModelEval_55["ROC","Testing.data",,,] is > a vector not an array or matrix. What the error message is > saying is that dim() is not returning a value (it's length is > not positive, since it cannot be negative length(dim(.)) must be >...

Dear All, I have a set of environental maps and presence-only points for some species. How can I generate distributions models on R using these presence-only data? What packages and functions can I use to do so? Kind regards, Miltinho Brazil [[alternative HTML version deleted]]

Hello: While running R doing the analysis of my data I (using packages such as BIOMOD or e1071) get the following error as a result of several of my analysis: Error: cannot allocate vector of size 998.5 Mb In addition: Warning messages: 1: In array(c(rep.int(c(1, numeric(n)), n - 1L), 1), d, dn) : Reached total allocation of 4095Mb: see help(memory.size) 2: In array(c(rep....

Dear r helpers, I'm trying to run the models of the BIOMOD package and got this message: * Error in nnet.default (x, y, w,...): **initial value in 'vmmin' is not finite* What does this mean? and how can I correct it? Thank you *Andreia* [[alternative HTML version deleted]]

Dear R developers, I come to you because nobody was able to answer the following request yet. I'm developing a release of BIOMOD package called biomod2 ( https://r-forge.r-project.org/R/?group_id=302). I'm writing my package helps files and I'm not really satisfied by the visual results. I would like to make subsections in the package "function help index" file. I would like for example to put all S4 ob...

Hi All, I am currently preparing some form of slideshow introducing R and its capabilities for some colleagues. The thing will be about 30 mins, and I'd like to have some "pretty pictures" and some "amazing facts" (I'm trying to sell, obviously :)). Can I ask if it's possible to easily retrieve a gross figure of the number of functions in R considering the