spatialrisk 0.8.0
Main API changes
- Added
concentration_hotspot() as the main function for
fixed-radius concentration hotspot detection. The function returns a
hotspot object with hotspots and
contributing_points components.
- Added
method = "continuous" as the default method for
concentration_hotspot(). It searches for hotspot centres
that may lie between observed points, using spatial screening followed
by Rcpp pair-intersection refinement. If the local subset exceeds
max_refinement_points, it falls back to
method = "grid".
- Added
method = "observed" to
concentration_hotspot(), an experimental Rcpp
spatial-indexing alternative that searches observed point locations
only.
- Deprecated
find_highest_concentration() in favour of
concentration_hotspot(). The deprecated function remains
available for existing code.
- Renamed the
concentration() workflow to
radius_sum(), with clearer targets and
reference arguments. The old concentration()
function remains available as a deprecated compatibility wrapper.
- Renamed
radius_sum(display_progress = ) to
radius_sum(progress = ) for consistency with
concentration_hotspot().
- Renamed
points_in_circle() to
points_within_radius(). The old function remains available
as a deprecated compatibility wrapper.
- Replaced
points_to_polygon() with
summarise_points_by_polygon(), which more clearly describes
joining point data to polygons and summarising a numeric point
attribute. The old function remains available as a deprecated
compatibility wrapper.
- Renamed
plot_points() to map_points(). The
old function remains available as a deprecated compatibility
wrapper.
Function improvements
- Improved
haversine() and the underlying C++ distance
calculation by reducing unnecessary operations and adding stricter input
checks.
- Improved
points_within_radius() validation and handling
of multiple centre coordinates.
- Improved
radius_sum() validation, output column
handling, and C++ prefiltering of incomplete reference rows.
- Updated
concentration_hotspot() documentation to
clarify that the function uses a grid-based search with local
refinement. The search precision is controlled by cell_size
and grid_precision.
concentration_hotspot() now uses progress
instead of print_progress. Since this is a new public API,
the old argument is not retained there; older deprecated functions still
translate their legacy progress arguments.- Deprecated
interpolate_spline() because spline
interpolation is outside the main scope of the package. The function
remains available for compatibility.
Mapping and visualisation
- Consolidated choropleth mapping around
choropleth(),
using tmap for both static and interactive output.
- Deprecated
choropleth_ggplot2() in favour of
choropleth().
- Moved optional visualisation packages such as
mapview,
tmap, ggplot2, and classInt to
Suggests.
Data and documentation
- Reorganised dataset documentation by topic: Dutch spatial boundary
data, KNMI stations, insurance example data, and Groningen example
addresses.
- Moved
knmi_historic_data() to its own function
documentation file and improved validation for years, station IDs,
progress handling, failed downloads, and temporary-file cleanup.
- Added tests for package dataset schemas and
knmi_historic_data() input validation.
- Added a main vignette on fixed-radius concentration analysis in an
applied insurance setting.
- Updated the visualisation vignette to use the current
choropleth() API.
- Rewrote the README in a more applied, method-oriented style suitable
for use alongside an actuarial paper.
- Updated
DESCRIPTION with a more specific title and
broader package description.
- Centralised small deprecated compatibility wrappers in one
file.
spatialrisk 0.7.3
- Updated and improved all function documentation (roxygen2).
spatialrisk 0.7.2
- Introduced
find_highest_concentration(): a faster and
more accurate alternative to highest_concentration(),
leveraging focal statistics for optimal results.
- Deprecated
highest_concentration() in favor of the new,
improved function.
- Updated
plot_points() to utilize
mapview::mapview() for enhanced interactive map
visualizations.
- Revised the README to reflect these new features and updates.
spatialrisk 0.7.1
plot_points() now returns a warning when a specific
provider tile is not available.
spatialrisk 0.7.0
neighborhood_gh_search() now returns a more precise
outcome when the radius of the circle is not equal to 200m.sf::st_crs() is used for sf objects to not
show the message that old crs is detected anymore.
spatialrisk 0.6.9
highest_concentration() now returns correct highest
concentration when the circle of the highest concentration overlaps more
than one geohash.plot.concentration() now handles many lon/lat pairs
better.
spatialrisk 0.6.8
highest_concentration() is added to do a fast search
for the coordinates of the highest concentration.neighborhood_gh_search() is added to look for even
higher concentrations in the neighborhood of the coordinates found by
highest_concentration().
spatialrisk 0.6.7
- A package website is added using pkgdown.
concentration() and points_in_circle() now
return error messages when the data does not contain columns for
lon and lat.concentration() and points_in_circle()
have updated documentation.haversine() now returns NA when coordinates are
missing.
spatialrisk 0.6.6
points_to_polygon() is updated to keep spatialrisk and
a new version of dplyr working together smoothly.
spatialrisk 0.6.5
knmi_historic_data() and knmi_stations()
are added to retrieve data from weather stations in the
Netherlands.
spatialrisk 0.6.4
interpolate_krige() and
interpolate_spline() are added for interpolation and
smoothing on the sphere.
spatialrisk 0.6.3
- Data sets
nl_corop(), nl_gemeente(),
nl_postcode1(), nl_postcode2(),
nl_postcode3(), nl_postcode4(), and
nl_provincie() now contain columns longitude
and latitude for the centroid of the polygons.
spatialrisk 0.6.2
- Non UTF-8 character removed from column
areaname in
data set nl_gemeente().
- In
choropleth(), n specifies the number of
clusters in a map.
- In data sets
nl_corop(), nl_gemeente(),
nl_postcode1(), nl_postcode2(),
nl_postcode3(), nl_postcode4(), and
nl_provincie, column areaname now refers to
the region.
spatialrisk 0.6.1
- In
points_to_polygon(), outside_print
shows the points that are not within any polygon.
spatialrisk 0.6.0
points_to_polygon() is added.- Data sets
europe_countries() and
world_countries() are added.
spatialrisk 0.5.1
- In
concentration() the algorithm for testing if a point
is inside a circle is updated by testing whether the point is inside a
square diamond inside the square.
spatialrisk 0.3.1
NEWS.md is added to track changes to the package.