cv_hex: Hexagon tiling of region

In inlabru: Bayesian Latent Gaussian Modelling using INLA and Extensions

Hexagon tiling of region

Description

Both the interface and function name may change in future versions.

Partitions the region based on the hexagon tiling

Input:

Usage

cv_hex(samplers, cellsize = 0.5, n_group = 3, ...)

Arguments

samplers	A sf object containing region for which partitions to be created
cellsize	hexagon cellsize, see sf::st_make_grid() description
n_group	number of cv folds.
...	Passed on to fm_nonconvex_hull(), e.g. resolution

Value

a hexagonal partition covering the samplers object, with a group integer variable indicating the fold assignment, 1, 2, ..., n_group.

Author(s)

Man Ho Suen

Examples

if (interactive()) {
  bnd <- gorillas_sf$boundary
  hex_cv <- cv_hex(bnd, cellsize = 2, n_group = 3, resolution = 100)
  plot(hex_cv)

  chess <- cv_partition(bnd, resolution = 1.5, chess = TRUE)
  plot(chess$black$geometry, col = "black")
}

inlabru documentation built on July 28, 2026, 9:07 a.m.