make.grid.prevR: Create a spatial grid from an object of class prevR.
Description
This function generates a spatial rectangular grid from the slot
boundary of an object of class prevR; function used in
particular by the methods kde(), krige() and idw().
Object of class sf::sfc (simple feature geometry list column).
Arguments
object
object of class prevR.
nb.cells
number of cells on the longest side of the studied area
(unused if cell.size is defined).
cell.size
size of each cell (in the unit of the projection).
Details
This function generates a spatial rectangular grid, each cell
corresponding to the center of a square of side cell.size.
If cell.size is not defined, side of cells will be
calculated as the longest side of the slot boundary of object
divided by nb.cells.