XDNUTS (version 1.6)

xdextract: Function to extract samples from the output of an XDNUTS model.

Description

Function to extract samples from the output of an XDNUTS model.

Usage

xdextract(
  X,
  which = NULL,
  which_chains = NULL,
  collapse = FALSE,
  thin = NULL,
  burn = NULL
)

Value

an \(N \times d\) matrix or an \(N \times d \times C\) array, where C is the number of chains, containing the MCMC samples.

Arguments

X

an object of class XDNUTS.

which

either a numerical vector indicating the index of the parameters of interest or a string

which = 'continuous'

for plotting the first \(d-k\) parameters.

which = 'discontinuous'

for plotting the last \(k\) parameters.

where both \(d\) and \(k\) are elements contained in the output of the function xdnuts.

which_chains

a vector of indices containing the chains to extract. By default, all chains are considered.

collapse

a boolean value. If TRUE, all samples from every chain are collapsed into one. The default value is FALSE.

thin

an integer value indicating how many samples should be discarded before returning an iteration of the chain.

burn

an integer value indicating how many initial samples for each chain to burn.