combineItemPoolData

<code>combineItemPoolData</code> is an internal function for combining item pool data.
Columns that exist on only one side are filled in with NA values.

internal

Uses the optimal test design approach by Birnbaum (1968, ISBN:9781593119348) and
van der Linden (2018) <doi:10.1201/9781315117430> to construct fixed, adaptive, and parallel tests.
Supports the following mixed-integer programming (MIP) solver packages: 'Rsymphony',
'highs', 'gurobi', 'lpSolve', and 'Rglpk'. The 'gurobi' package is not available from CRAN; see <https://www.gurobi.com/downloads/>.

Seung W. Choi

TestDesign

Optimal Test Design Approach to Fixed and Adaptive Test
Construction

Sangdon Lim

combineItemPoolData function

<dl><dt>raw1, raw2</dt>
<dd>a <code><a href="/link/data.frame?package=TestDesign&version=1.7.0" data-mini-rdoc="TestDesign::data.frame">data.frame</a></code> containing item pool data.</dd>
<dt>unique</dt>
<dd>if <code>TRUE</code>, rows that have duplicate IDs are removed.</dd></dl>

Arguments

(Internal) Combine item pool data — combineItemPoolData

<dl>

<dt>raw1, raw2</dt>
<dd>a <code><a href='https://rdrr.io/r/base/data.frame.html'>data.frame</a></code> containing item pool data.</dd>


<dt>unique</dt>
<dd>if <code>TRUE</code>, rows that have duplicate IDs are removed.</dd>

</dl>

combineItemPoolData: (Internal) Combine item pool data

Description

Usage

Value

Arguments