Hi, This is addressed briefly in section 4.2 of the dismo package vignette.
https://cran.r-project.org/web/packages/dismo/vignettes/sdm.pdf <https://cran.r-project.org/web/packages/dismo/vignettes/sdm.pdf> Does that answer your question? Ben > On Sep 27, 2017, at 10:59 AM, Maurizio Marchi <mauriziomarch...@gmail.com> > wrote: > > Dear R users, > I would like to include soil as predictor in my model and in addition to > climatic variables. Anyway I have some doubts concerning the usd of > categorical values such as the format of my raster file. Actually, my soil > type data are categorical codes, should these codes be described as > categories prior to be used? Or shoul I reclassify my raster into numeric > values? My main concern is if I would create directional influence and bias > in the results. > Thanks > -- > Maurizio Marchi > Skype ID: maurizioxyz > linux user 552742 > > [[alternative HTML version deleted]] > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-geo Ben Tupper Bigelow Laboratory for Ocean Sciences 60 Bigelow Drive, P.O. Box 380 East Boothbay, Maine 04544 http://www.bigelow.org Ecocast Reports: http://seascapemodeling.org/ecocast.html Tick Reports: https://report.bigelow.org/tick/ Jellyfish Reports: https://jellyfish.bigelow.org/jellyfish/ [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo
