Objective function minimization

Source: R/srat.R

Objective function minimization

obj.min(
  coef,
  Z,
  y,
  u = NULL,
  v = NULL,
  tree = TRUE,
  nrep = 1,
  ftol = 1e-06,
  nfun_max = 5000
)

Arguments

coef

initial parameter values
Z

covariates matrix
y

response vector
u

a vector of weights
v

a vector of weigths
tree

indicator of whether the tree algorithm should be used for fast ranking
nrep

number of replications in the optimization algorithm
ftol

function tolerance to determine convergence
nfun_max

maximum number of function evaluations