Changelog

Source: NEWS.md

sfhotspot 0.8.0

• All functions can now handle SF objects in which the geometry column has a name other than geometry (#30).
• hotspot_kde() progress bar is now suppressed by quiet = TRUE (#25).
• When KDE bandwidth is selected automatically based on a rule of thumb, the reported bandwidth now takes into account the value of bandwidth_adjust (#32).

sfhotspot 0.7.1

CRAN release: 2023-02-10

• Added warning if automatically created grids contain more than 100,000 cells, since this can cause other functions in the package to run very slowly (#24).
• Fixed bug in which cell size could be incorrectly rounded to zero (#26).
• Removed covr dependency.

sfhotspot 0.7.0

CRAN release: 2022-09-11

• New function hotspot_change() and corresponding methods for autoplot() and autolayer() for measuring change in the frequency of events between two time periods (#14).

sfhotspot 0.6.1

• Fixed bug in which the message produced when setting bandwidth automatically referred to the unadjusted rather than adjusted bandwidth (#22).

sfhotspot 0.6.0

• New function hotspot_dual_kde() for estimating different relations between the density of two point layers (#1).
• New dataset memphis_population showing the 2020 population of the centroids of census blocks in Memphis, TN.

sfhotspot 0.5.0

• Users can now specify weights for counts of points and kernel density estimation via the weights argument to hotspot_count(), hotspot_kde() and hotspot_gistar().

sfhotspot 0.4.0

• Users can now provide their own grid using the grid argument to the hotspot_*() family of functions.
• New function hotspot_grid() added so users can create a rectangular or hexagonal grid separately from counting points, calculating KDE values, etc. This may be useful to use the same grid for different datasets covering a similar area.

sfhotspot 0.3.1

• Fixed bug where ... arguments were not passed on to SpatialKDE::kde() as specified in the documentation.

sfhotspot 0.3.0

• Added autoplot() methods for plotting the results produced by hotspot_count(), hotspot_kde() and hotspot_classify().
• Added bandwidth_adjust argument to hotspot_kde() and hotspot_gistar() so that bandwidth can be set relative to the default.

sfhotspot 0.2.2

• Added checking for empty geometries and co-ordinates on Null Island (or equivalent zero co-ordinates in other co-ordinate systems). Empty geometries produce an error and zero co-ordinates produce a warning.

sfhotspot 0.2.1

• Fixed a bug where a grid of cells could not be created for an SF object with no CRS defined (and improved the error message when trying to calculate KDE values in this circumstance).
• Fixed a bug where the grid returned by the hotspot_*() family of functions was not clipped to the convex hull of the data, as specified in the documentation.

sfhotspot 0.2.0

CRAN release: 2022-02-14

• Added hotspot_classify() and hotspot_classify_params() functions.
• Added references to function documentation pages and the DESCRIPTION file.
• Changed \dontrun{} in some of the documentation examples to \donttest{}.

sfhotspot 0.1.1

• Fixed a problem with some of the examples in the documentation taking too long to run, which caused them to fail CRAN checks.

sfhotspot 0.1.0

• Initial release of the package with the functions hotspot_count(), hotspot_kde() and hotspot_gistar().