I recieved this response from the package authors: This warning comes from the dismo package (predict with Mahanalobis object). You can ignore it. It will go away with the next version of dismo (you can get it from R-Forge).
So the problem is in dismo which has not been updated since raster has. Maxent is also run through dismo which is why you are having the same problem. They have not updated dismo yet but it appears that they are awear of the issue and will correct it whenever dismo is updated. -- View this message in context: http://r.789695.n4.nabble.com/Predict-function-in-Raster-package-tp4651027p4651205.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.