phase1 {ERPM}

Core function for Phase 1

Description

Core function for Phase 1

Usage

phase1(
  startingestimates,
  inv.zcov,
  inv.scaling,
  z.phase1,
  z.obs,
  nodes,
  effects,
  objects,
  r.truncation.p1,
  length.p1,
  fixed.estimates,
  verbose = FALSE
)

Arguments

startingestimates

vector containing initial parameter values

inv.zcov

inverted covariance matrix

inv.scaling

scaling matrix

z.phase1

statistics retrieved from phase 1

z.obs

observed statistics

nodes

node set (data frame)

effects

effects/sufficient statistics (list with a vector "names", and a vector "objects")

objects

objects used for statistics calculation (list with a vector "name", and a vector "object")

r.truncation.p1

numeric used to limit extreme values in the covariance matrix (for stability)

length.p1

number of samples in phase 1

fixed.estimates

if some parameters are fixed, list with as many elements as effects, these elements equal a fixed value if needed, or NULL if they should be estimated

verbose

logical: should intermediate results during the estimation be printed or not? Defaults to FALSE.

Value

estimated parameters after phase 1