fishnet {phyloregion} | R Documentation |
Create fishnet of regular grids
Description
The fishnet
function creates a regular grid of locations covering
the study area at various grain sizes.
Usage
fishnet(mask, res = 0.5)
Arguments
mask |
a vector polygon covering the boundary of the survey region. |
res |
the grain size of the grid cells in decimal degrees (default). |
Value
A spatial vector polygon object of equal area grid cells covering the defined area.
References
Phillips, S.J., Anderson, R.P. & Schapire, R.E. (2006) Maximum entropy modeling of species geographic distributions. Ecological Modelling 190: 231-259.
Examples
d <- terra::vect(system.file("ex/nigeria.json", package="phyloregion"))
f <- fishnet(d, res = 0.75)
[Package phyloregion version 1.0.8 Index]