estelleMetropolis: Metropolis Samplers

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

Metropolis Samplers

Description

Metropolis samplers for Stella or Estelle.

Usage

estelleMetropolis(
  model,
  proposal.x,
  proposal.z,
  x0 = NULL,
  z0 = NULL,
  iters = 1000L,
  thin = 10L,
  chains = 1L,
  verbose = interactive()
)

stellaMetropolis(
  model,
  proposal.x,
  x0 = NULL,
  iters = 1000L,
  thin = 10L,
  chains = 1L,
  verbose = interactive()
)

Arguments

model	a model structure as generated by thresholdModel.
proposal.x	function for drawing proposals for x.
proposal.z	function for drawing proposals for z.
x0	Starting values for twilight locations x.
z0	Starting values for intermediate locations z.
iters	number of samples to draw.
thin	rate at which to thin samples.
chains	number of chains to sample.
verbose	report progress at prompt?

Details

These functions draw samples form posterior for the Stella or Estelle model by the Metropolis algorithm.

Value

If there are r samples drawn for each of q chains of p parameters at n locations, Stella will return a list containing

model	the model structure
x	a list of n x p x r arrays of twilight locations from the q chains

While in addition Estelle will return

z	a list of (n-1) x p x r arrays of intermediate locations from the q chains

.

See Also

thresholdModel

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