as.IFAgroup

mxModel

observed data (otherwise the data will be taken from the mxModel)

data

an MxModel in which to search for the latent distribution matrices

container

Convert an OpenMx MxModel object into an IFA group

The purpose of this package is to factor out logic and
        math common to Item Response Theory fitting, diagnostics, and
        analysis. It is envisioned as core support code suitable for
        more specialized IRT packages to build upon. A version 1.0 will
        offer optimized, low-level functions to map parameters to
        response probabilities for a wide variety of dichotomous and
        polytomous item models.

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as.IFAgroup: Convert an OpenMx MxModel object into an IFA group

Description

Usage

Arguments

Value