dispersal_sphere: Draw from spherical distribution

In Michael-Stevens-27/silverblaze: Geographic Profiling in R

Description

Draw from distribution converted to spherical coordinate system. Points are first drawn from an ordinary cartesian 2D normal distribution. The distances to points are then assumed to be great circle distances, and are combined with a random bearing from the point centre_lat, centre_lon to produce a final set of lat/lon points.

Usage

dispersal_sphere(
  n,
  centre_lon,
  centre_lat,
  dispersal_model = "normal",
  scale = 1
)

Arguments

n	The number of points to draw
centre_lon	The mean longitude of the distribution
centre_lat	The mean latitude of the distribution
dispersal_model	The model we draw points from (normal or cauchy)
scale	The scale parameter of the dispersal distribution defined by the parameter "dispersal_model"

Examples

dispersal_sphere(n = 100, centre_lat = 0, centre_lon = 0, dispersal_model = "normal", scale = 1)

Michael-Stevens-27/silverblaze documentation built on May 28, 2021, 5:47 p.m.