PPRBupdate {bstrl}

Perform a PPRB update of record linkage with a new file

Description

Perform a PPRB update of record linkage with a new file

Usage

PPRBupdate(
  state,
  newfile,
  flds = NULL,
  nIter = NULL,
  burn = 0,
  blocksize = NULL,
  threestep = TRUE,
  seed = 0,
  refresh = 0.1
)

Arguments

state

Existing record linkage state. Returned by either bipartiteRL, PPRBupdate, SMCMCupdate, or multifileRL.

newfile

A data.frame representing the new file: one row per record

flds

Names of fields in the new file to use for comparison. Only used if no global field names were specified in bipartiteRL initially.

nIter

Number of iterations for which to run the PPRB sampler. By default, this is the same as the number of samples present in 'state'.

burn

Number of initial iterations to discard. The total number of samples returned is nIter - burn.

blocksize

Size of blocks to use for locally balanced proposals. Default performs unblocked locally balanced proposals.

threestep

Whether to perform three Gibbs sampling steps per iteration, with past Z's updated with PPRB, m and u updated with full conditionals, and the current Z updated with locally balanced proposals. If false, a two step Gibbs sampler is used where past Z's, m and u are updated together using PPRB and the current Z is updated with locally balanced proposals

seed

Random seed to set at the beginning of the MCMC run

refresh

How often to output an update including the iteration number and percent complete. If refresh >= 1, taken as a number of iterations between messages (rounded). If 0 < refresh < 1, taken as the proportion of nIter. If refresh == 0, no messages are displayed.

Value

An object of class 'bstrlstate' containing posterior samples and necessary metadata for passing to future streaming updates.

Examples

data(geco_small)
data(geco_small_result)

# Add fifth file to previous four-file link result
file5.result <- PPRBupdate(geco_small_result, geco_small[[5]],
                           nIter=2, burn=1) # Very small run for example