compute_neighbors_brute {GeoThinneR} | R Documentation |
Compute Neighbors Using Brute-Force
Description
Computes neighbors for each point in a set of coordinates using a greedy approach. All pairwise distances are calculated to identify neighbors within a specified distance threshold.
Usage
compute_neighbors_brute(
coordinates,
thin_dist,
distance = c("haversine", "euclidean"),
R = 6371
)
Arguments
coordinates |
A matrix of coordinates to thin, with two columns representing longitude and latitude. |
thin_dist |
A positive numeric value representing the thinning distance in kilometers. |
distance |
A character string specifying the distance metric to use 'c("haversine", "euclidean")'. |
R |
A numeric value representing the radius of the Earth in kilometers. The default is 6371 km. |
Value
A list where each element corresponds to a point and contains the indices of its neighbors.
Examples
set.seed(123)
coords <- matrix(runif(20, min = -180, max = 180), ncol = 2)
# Compute neighbors using brute fore
neighbors <- compute_neighbors_brute(coords, thin_dist = 10,)
[Package GeoThinneR version 2.0.0 Index]