Selects the prediction locations located inside a polygon defining
borders of a region where prediction is aimed.
Typically internally called by geoR functions
krige.bayes, krige.conv,
ksline.
a two columns matrix or dqata frame with coordinates
of the prediction locations.
borders
a two column matrix or data-frame with coordinates of a
polygon defining the borders of the region.
as.is
logical defining if the returned object of of the same
type (list, data-frame or matrix) as the provided in
locations. If FALSE the function returns a matrix.
…
arguments to be passed to the internal function
.geoR_pip and currently not used.
Value
A two columns matrix, data-frame or a list with 2 elements with coordinates of points inside the borders.