cbc.df

A dataset containing simulated choices from a CBC study where some of the
respondents are information poor or 'Gremlins'. The data is simulated data
and does not reflect actual preferences.

datasets

The tools and utilities to estimate the model described in "Gremlin's in the
Data: Identifying the Information Content of Research Subjects" (Howell et al.
(2021) <doi:10.1177/0022243720965930>) using conjoint analysis data such as
that collected in Sawtooth Software's 'Lighthouse' or 'Discover' products.
Additional utilities are included for formatting the input data.

John Howell

RGremlinsConjoint

Estimate the "Gremlins in the Data" Model for Conjoint Studies

Peter Ebbes

John Leichty

cbc.df function

A data frame with 32000 rows and 10 variables:<dl>
 <dt>resp.id</dt>
<dd>A respondent identifier</dd> <dt>ques</dt>
<dd>The question or task number</dd> <dt>alt</dt>
<dd>The choice alternative</dd> <dt>choice</dt>
<dd>An indicator that takes on a value of 1 if the alternative was chosen. (Default is 0.)</dd> <dt>brandFord</dt>
<dd>A dummy coded variable indicating the brand is Ford</dd> <dt>brandGM</dt>
<dd>A dummy coded variable indicating the brand is GM</dd> <dt>brandDodge</dt>
<dd>A dummy coded variable indicating the brand is Dodge</dd> <dt>enghyb</dt>
<dd>A dummy coded variable indicating the engine is a hybrid</dd> <dt>engelec</dt>
<dd>A dummy coded variable indicating the engine is electric</dd> <dt>price</dt>
<dd>A continuous variable for the relative price of the individual offerings.</dd>
</dl>

Format

Simulated data for the "Gremlins in the Data Model" — cbc.df

A data frame with 32000 rows and 10 variables:<dl>
 <dt>resp.id</dt>
<dd>A respondent identifier</dd>

 <dt>ques</dt>
<dd>The question or task number</dd>

 <dt>alt</dt>
<dd>The choice alternative</dd>

 <dt>choice</dt>
<dd>An indicator that takes on a value of 1 if the alternative was chosen. (Default is 0.)</dd>

 <dt>brandFord</dt>
<dd>A dummy coded variable indicating the brand is Ford</dd>

 <dt>brandGM</dt>
<dd>A dummy coded variable indicating the brand is GM</dd>

 <dt>brandDodge</dt>
<dd>A dummy coded variable indicating the brand is Dodge</dd>

 <dt>enghyb</dt>
<dd>A dummy coded variable indicating the engine is a hybrid</dd>

 <dt>engelec</dt>
<dd>A dummy coded variable indicating the engine is electric</dd>

 <dt>price</dt>
<dd>A continuous variable for the relative price of the individual offerings.</dd>


</dl>

cbc.df: Simulated data for the "Gremlins in the Data Model"

Description

Usage

Arguments

Format