[R] adehabitat functions

Is there a way to just build a madifa function in adehabitat just using a .csv file with presences and the corresponding environmental data? I'm trying to model the species distribution of a species using 45 environmental grids and r crashes after loading just 5 of them. I'd like to develop the fun

[R] adehabitat raster import

Hello all, I'm new to adehabitat and am having trouble getting my ascii files into the r. I have 45 environmental data layers that are all stored in a folder as ascii files. Is there an easy way to pull in all 45 of my data layers into a kasc dataframe. I'm not new to r or multivariate modeling, bu

[R] random forest varimp

Friends, I have noticed that many publications that use RF report variable importance as a function of mean decrease in accuracy rather than mean decrease in gini. Am I correct that the mean decrease in accuracy is just the mean decrease in gini divided by 100? Thanks, Helen Mills Poulos Yale

[R] randomForest get tree

All, What purpose does the getTree function have in Random Forest? Can you graph it as you can in rpart and can it be interpreted in the same way? Helen Mills Poulos Yale School of Forestry __ R-help@r-project.org mailing list https://stat.ethz.ch

[R] unsupervised random forest classification

Friends, I would like to use Random Forest in unsupervised mode to classify data that are from a mixture of categorical and continuous variables. The examples I find online use only continuous data, followed by an mds plot. Is it correct to use RF to obtain proximities for my mixed dataset and then