Groningen               Coordinates of houses in Groningen
choropleth              Create choropleth map
choropleth_ggplot2      Choropleth map of an sf object with ggplot2
concentration           Concentration calculation
convert_crs_df          Convert Coordinate Reference System (CRS)
find_highest_concentration
                        Find highest concentration
haversine               Haversine great circle distance
highest_concentration   Highest concentration risk
insurance               Sum insured per postal code in the Netherlands
interpolate_spline      Splines on the sphere
knmi_historic_data      Retrieve historic weather data for the
                        Netherlands
knmi_stations           KNMI stations
neighborhood_gh_search
                        Search for coordinates with higher
                        concentrations within geohash
nl_corop                Object of class 'sf' for COROP regions in the
                        Netherlands
nl_gemeente             Object of class 'sf' for municipalities in the
                        Netherlands
nl_postcode2            Object of class 'sf' for 2-digit postcode
                        regions in the Netherlands
nl_postcode3            Object of class 'sf' for 3-digit postcode
                        regions in the Netherlands
nl_postcode4            Object of class 'sf' for 4-digit postcode
                        regions in the Netherlands
nl_provincie            Object of class 'sf' for provinces in the
                        Netherlands
plot.conc               Automatically create a plot for objects
                        obtained from highest_concentration()
plot.concentration      Automatically create a plot for objects
                        obtained from 'find_highest_concentration()'
plot.neighborhood       Automatically create a plot for objects
                        obtained from neighborhood_gh_search()
plot_points             Create interactive point map
points_in_circle        Find points within a circle around a center
                        coordinate
points_in_circle_vec    Filter observations within circle (vectorized)
points_to_polygon       Map points to polygons
