fastmbu {lmap}

Fast version of mbu. It runs mbu without input checks.

Description

Fast version of mbu. It runs mbu without input checks.

Usage

fastmbu(
  Y = NULL,
  W = NULL,
  XU = NULL,
  BU = NULL,
  XV = NULL,
  BV = NULL,
  mains = TRUE,
  MAXINNER = 32,
  FCRIT = 0.001,
  MAXITER = 65536,
  DCRIT = 1e-06
)

Arguments

Y

matrix with dichotomous responses

W

matrix with weights for each entrance of Y or vector with weights for each row of Y

XU

in unsupervised analysis starting values for row coordinates; in supervised analysis matrix with predictor variables for rows

BU

for supervised analysis matrix with regression weights for the row coordinates

XV

in unsupervised analysis starting values for column coordinates; in supervised analysis matrix with predictor variables for columns

BV

for supervised analysis matrix with regression weights for the column coordinates

mains

whether offsets for the items should be estimated

MAXINNER

maximum number of iterations in the inner loop

FCRIT

convergence criterion for STRESS in the inner loop

MAXITER

maximum number of iterations in the outer loop

DCRIT

convergence criterion for the deviance

Value

U estimated coordinate matrix for row objects

BU for supervised analysis the estimated matrix with regression weights for the rows

V estimated coordinate matrix for column objects

BV for supervised analysis the estimated matrix with regression weights for the columns

Mu estimated offsets

Lastinner number of iterations in the last call to STRESS

Lastfdif last difference in STRESS values in the inner loop

lastouter number of iterations in the outer loop

lastddif last difference in deviances in outer loop

deviance obtained deviance