locationImage: Location Density Image

In SWotherspoon/SGAT: Solar/Satellite Geolocation for Animal Tracking

Location Density Image

Description

Bin locations to form a 2D density image

Usage

locationImage(
  s,
  xlim,
  ylim,
  nx,
  ny,
  weight = rep_len(1, dim(s)[1L]),
  discard = 0,
  collapse = TRUE,
  chains = NULL
)

Arguments

s	a single chain or a list of parallel chains generated by estelleMetropolis or stellaMetropolis.
xlim	range of the first coordinate.
ylim	range of the second coordinate.
nx	number of cells in the first coordinate.
ny	number of cells in the second coordinate.
weight	weights for each location.
discard	number of initial samples to discard.
collapse	whether to collapse parallel chains to a single chain
chains	the set of chains to retain, or NULL.

Details

Bins the samples for a sequence of locations to produce 2D array suitable for plotting with image. Optionally, a vector of weights can be provided to differentially weight samples by location.

This function accepts either a sample from a single mcmc run, or a list of samples from parallel mcmc runs. If collapse is true, multiple samples are merged and single image is returned, otherwise an image is returned for each sample.

Value

A list with elesments

x	the x-ordinates that bound the bins
y	the y-ordinates that bound the bins
W	the weighted image.

SWotherspoon/SGAT documentation built on June 1, 2022, 10:49 p.m.