grasp.corlim {grasper} | R Documentation |
Calculates correlations for two variables with differentiation of presences and absences
grasp.corlim(gr.Yi, cols, thin = 1)
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 |
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.
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.
grasp.histo
, grasp.datamap
, grasp.RvsP
and grasp.cormat