Package index

Grids

Build and tune hexagonal / rectangular grids over a study area.

create_grid()

Create hexagonal or square grids for spatial analysis

create_single_grid()

Build the grid for a single study area (internal)

find_hex_cell_size_for_target_cells()

Find a hexagonal cell size that yields approximately a target number of cells

get_utm_crs()

Get an appropriate UTM CRS for a study area

Raster extraction

Pull raster values into grid cells.

extract_raster_data()

Extract raster data into a hexagonal grid

Topology and smoothing

Compute neighbour topology and apply N-order spatial smoothing.

compute_topology()

Compute spatial topology and weights for hexagonal smoothing

smooth_variables()

Apply spatial smoothing to variables on a hexagonal grid

Hex measurement helpers

hex_flat_to_edge() hex_flat_to_circumradius() hex_edge_to_flat() hex_circumradius_to_flat()

Convert between hexagon measurements

Internal

hex_msg()

Internal verbose-print helper

ordinal_suffix()

Ordinal suffix for an integer (internal)

validate_smoothing_inputs()

Validate inputs to the smoothing functions (internal)

smooth_variables_r_fallback()

R fallback for N-order spatial smoothing

estimate_avg_neighbor_distance()

Estimate average distance between first-order neighbours (internal)

compute_neighbors_n_orders()

Compute neighbours for N orders (internal, vectorised set-based BFS)

compute_weights_n_orders()

Compute weights for N orders (internal)