disc	Generates discretization parameters for continuous data.
optidisc	Optimal discretization for continuous variables and visualization.
gd	Geographical detectors: factor detector.
riskmean	Geographical detectors: risk means in risk detector.
gdrisk	Geographical detectors: risk detector.
gdinteract	Geographical detectors: interaction detector.
gdeco	Geographical detectors: ecological detector.
gdm	Geographical detectors: a one-step function.
sesu	Comparison of size effects of spatial units.
v2m  Converts a vector to a lower triangular matrix.
NDVI  Spatial datasets of vegetation index changes.
H1N1  Spatial datasets of H1N1 flu incidences.
road_GD  Spatial datasets of road damage conditions.
