zapSystemMissing

Coerce ConQuest system missing values to NA. Note this is very slow and users should use the internal
function conquestr::replaceInDataFrame where possible.

internal

Extends 'ACER ConQuest' through a family of functions
designed to improve graphical outputs and help with advanced analysis
(e.g., differential item functioning). Allows R users to call
'ACER ConQuest' from within R and read 'ACER ConQuest' System Files
(generated by the command `put` <https://conquestmanual.acer.org/s4-00.html#put>).
Requires 'ACER ConQuest' version 5.40 or later.
A demonstration version can be downloaded from <https://shop.acer.org/acer-conquest-5.html>.

Dan Cloney

conquestr

An R Package to Extend 'ACER ConQuest'

Ray Adams

zapSystemMissing function

<dl><dt>x</dt>
<dd>a data frame.</dd></dl>

Arguments

zapSystemMissing — zapSystemMissing

<dl>

<dt>x</dt>
<dd>a data frame.</dd>

</dl>

zapSystemMissing: zapSystemMissing

Description

Usage

Value

Arguments