compressDataFrame

Compress a data frame into unique rows and frequency counts.

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

compressDataFrame function

<dl><dt>tabdata</dt>
<dd>An object of class <code>data.frame</code></dd>
<dt>freqColName</dt>
<dd>Column name to contain the frequencies</dd>
<dt>.asNumeric</dt>
<dd>logical. Whether to cast the frequencies to the numeric type</dd></dl>

Arguments

Compress a data frame into unique rows and frequencies — compressDataFrame

<dl>

<dt>tabdata</dt>
<dd>An object of class <code>data.frame</code></dd>


<dt>freqColName</dt>
<dd>Column name to contain the frequencies</dd>


<dt>.asNumeric</dt>
<dd>logical. Whether to cast the frequencies to the numeric type</dd>

</dl>

compressDataFrame: Compress a data frame into unique rows and frequencies

Description

Usage

Value

Arguments

Examples