dismo (version 0.8-5)

Random null model: Random null model

Description

Null model based on randomization of locations as suggested by Raes and ter Steege (2007).

Usage

nullRandom(x, model, n=25, rep=25, pa=FALSE)

Arguments

x

data.frame with environmental predictor values for collecting localities

model

Model function that creates a model of class 'DistModel'

n

Sample size

rep

Number of repetitions

pa

Boolean. Prensence-only or presence/background model (e.g. Maxent)

Value

• List with n object of class ModelEvaluation-class

References

Raes, N. & H. ter Steege, 2007. A null-model for significance testing of presence-only species distribution models. Ecography 30:727-736.

See Also

geoDist