grasp.corlim {grasper}R Documentation

GRASP-R spatial correlation plot

Description

Calculates correlations for two variables with differentiation of presences and absences

Usage

grasp.corlim(gr.Yi, cols, thin = 1)

Arguments

gr.Yi Selected responses to be used in the form of a vector with column numbers
cols Selected predictors to be used in the form of a vector with column numbers
thin Leave 1

Details

This function plots correlation between variables, somehow like the grasp.cormat function, but with the difference that presences and absences are differentiated. By looking at this plot before and after applying limits to your dataset, you can see the different distributions of presences and absences.

Author(s)

Fabien Fivaz fabien.fivaz@bluewin.ch. Ported to R from GRASP http://www.cscf.ch/grasp/ for S-Plus written by A. Lehmann, J.R. Leathwich and J. McC Overton. Look at http://www.cscf.ch/grasp for details and updates.

See Also

grasp.histo, grasp.datamap, grasp.RvsP and grasp.cormat


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