Binary logical operations (5)
With binary predicate functions like st_intersects()
, one can collect information about the topological relationship without making a spatially joined sf
object (with sf::st_join()
).
Example 1: counting points in polygons and adding the result to a copy of nc
.
## Warning in st_poly_sample(x, size = size, ..., type = type, by_polygon =
## by_polygon, : coordinate ranges not computed along great circles; install
## package lwgeom to get rid of this warning
## Warning in st_poly_sample(x, size = size, ..., type = type, by_polygon =
## by_polygon, : coordinate ranges not computed along great circles; install
## package lwgeom to get rid of this warning