Creates a vector or a list of vectors of bounding coordinates around point records (xy records).
This is an internal function used by function
backgroundGrid
.
boundingCoords(xy)
Data frame or list of data frames with coordinates (each row is a point)
A vector or a list of vectors with bounding coordinates in the following form: c(x1, x2, y1, y2).
Iturbide, M., Bedia, J., Herrera, S., del Hierro, O., Pinto, M., Gutierrez, J.M., 2015. A framework for species distribution modelling with improved pseudo-absence generation. Ecological Modelling. DOI:10.1016/j.ecolmodel.2015.05.018.