preprocess: Pre-process data.

In regDIF: Regularized Differential Item Functioning

Pre-process data.

Description

Pre-process data.

Usage

preprocess(
  item.data,
  pred.data,
  prox.data,
  item.type,
  pen.type,
  tau,
  num.tau,
  anchor,
  stdz,
  control,
  call
)

Arguments

item.data	Matrix or data frame of item responses.
pred.data	Matrix or data frame of DIF and/or impact predictors.
prox.data	Vector of observed proxy scores.
item.type	Character value or vector indicating the item response distributions.
pen.type	Character indicating type of penalty.
tau	Optional numeric vector of tau values.
num.tau	Numeric indicating number of tau values to run Reg-DIF on.
anchor	Optional numeric value or vector indicating which item response(s) are anchors (e.g., anchor = 1).
stdz	Logical value indicating whether to standardize DIF and impact predictors for regularization.
control	Optional list of additional model specification and optimization parameters.
call	Defined from regDIF.

Value

a "list" of default controls for "em_estimation"

regDIF documentation built on May 29, 2024, 9:31 a.m.