Specifying regularization multiplier for maxent from ENMTools

 I just got a question about this and I figured I should post about it, since it's quite counterintuitive.  If you need to specify a regularization multiplier in ENMTools for Maxent to use, you need to do it with the "-b" flag and the numerical argument passed as two separate arguments.  For instance if you wanted to model Iberolacreta monticola from the sample data using a regularization multiplier of 5, you'd do this:

library(ENMTools)

mont <- iberolacerta.clade$species$monticola

mont.mx <- enmtools.maxent(mont, euro.worldclim, args = c("-b", "5"))