betaFun                 Beta response function
convertToPA             Convert a virtual species distribution (or a
                        suitability raster) into presence-absence
custnorm                Normal function defined by extremes
formatFunctions         Format and visualise functions used to generate
                        virtual species with 'generateSpFromFun'
generateRandomSp        Generate a random virtual species distribution
                        from environmental variables
generateSpFromFun       Generate a virtual species distributions with
                        responses to environmental variables
generateSpFromPCA       Generate a virtual species distribution with a
                        PCA of environmental variables
limitDistribution       Limit a virtual species distribution to a
                        defined area
linearFun               Linear function
logisticFun             Logistic function
plotResponse            Visualise the response of the virtual species
                        to environmental variables
quadraticFun            Quadratic function
removeCollinearity      Remove collinearity among variables of a a
                        raster stack
sampleOccurrences       Sample occurrences in a virtual species
                        distribution
synchroniseNA           Synchronise NA values among layers of a stack
virtualspecies-package
                        Generation of virtual species
