group.ALS: Alternating Least Squares with Groups for Constrained Dual...

In cds: Constrained Dual Scaling for Detecting Response Styles

Alternating Least Squares with Groups for Constrained Dual Scaling

Description

Alternating least-sqaures for estimating row and column scores in constrained dual scaling, where different groups are allowed for.

Usage

group.ALS(
  a,
  m,
  q,
  G,
  Fr.cent,
  eps = 0.1,
  maxit = 50,
  Mmat,
  info.level = 2,
  const,
  K,
  n,
  tol
)

Arguments

a	A 2n-vector of row scores.
m	Integer; the number of items.
q	Integer; the rating scale from 1:q.
G	An indicator matrix of size n by K.
Fr.cent	The centred F_r matrix.
eps	The numerical tolerance level for the loss.
maxit	Integer; the maximum number of iterations allowed.
Mmat	Matrix of spline basis functions.
info.level	Integer controlling the amount of information printed.
const	The constant part of the loss function.
K	The number of latent classes.
n	The number of samples.
tol	tolerance tol passed to lsei of the limSolve package

cds documentation built on April 16, 2025, 1:10 a.m.