fromFactorThreshold

Convert factor thresholds to response function intercepts

Factor out logic
and math common to Item Factor Analysis fitting, diagnostics, and
analysis. It is envisioned as core support code suitable for more
specialized IRT packages to build upon. Complete access to optimized C
functions are made available with R_RegisterCCallable().
This software is described in Pritikin & Falk (2020) <doi:10.1177/0146621620929431>.

Joshua Pritikin

Response Probability Functions

Jonathan Weeks

Li Cai

Carrie Houts

Phil Chalmers

fromFactorThreshold function

<dl><dt>threshold</dt>
<dd>a matrix with items in the columns and thresholds in the rows</dd>
<dt>loading</dt>
<dd>a matrix with items in the rows and factors in the columns</dd>
<dt>ogive</dt>
<dd>the ogive constant (default rpf.ogive)</dd></dl>

Arguments

Convert factor thresholds to response function intercepts — fromFactorThreshold

<dl>

<dt>threshold</dt>
<dd>a matrix with items in the columns and thresholds in the rows</dd>


<dt>loading</dt>
<dd>a matrix with items in the rows and factors in the columns</dd>


<dt>ogive</dt>
<dd>the ogive constant (default rpf.ogive)</dd>

</dl>

fromFactorThreshold: Convert factor thresholds to response function intercepts

Description

Usage

Value

Arguments

See Also