Helper function to sample from previous MCMC chain while proposing new knots

Usage

sample_MCMC(
  mcmc_path,
  n.param.orig,
  prior.ind.orig,
  n.post.knots,
  knots.params.temp,
  prior.list,
  prior.fn,
  sf,
  sf.samp
)

mcmc_path: path to previous emulator mcmc samples object
n.param.orig: vector, number of parameters targeted in each (pft) sublist
prior.ind.orig: list, actual indices of parameters targeted in each (pft) sublist
n.post.knots: number of new samples requested
knots.params.temp: list of parameter samples proposed from the original PDA-prior
prior.list: PDA-prior list
prior.fn: list for parameter d/r/q/p functions
sf: SF parameter names
sf.samp: SF parameters MCMC samples

Istem Fer