validate_design_object

This internal function checks if data is a valid CBC design/choices object
or can be treated as one. If the data has lost its class but has the right
structure (ID columns), it attempts to reconstruct minimal attributes.

internal

Design and evaluate choice-based conjoint survey experiments. Generate a variety of survey designs, including random designs, frequency-based designs, and D-optimal designs, as well as "labeled" designs (also known as "alternative-specific designs"), designs with "no choice" options, and designs with dominant alternatives removed. Conveniently inspect and compare designs using a variety of metrics, including design balance, overlap, and D-error, and simulate choice data for a survey design either randomly or according to a utility model defined by user-provided prior parameters. Conduct a power analysis for a given survey design by estimating the same model on different subsets of the data to simulate different sample sizes. Bayesian D-efficient designs using the 'cea' and 'modfed' methods are obtained using the 'idefix' package by Traets et al (2020) <doi:10.18637/jss.v096.i03>. Choice simulation and model estimation in power analyses are handled using the 'logitr' package by Helveston (2023) <doi:10.18637/jss.v105.i10>.

John Helveston

cbcTools

Design and Analyze Choice-Based Conjoint Experiments

validate_design_object function

<dl><dt>data</dt>
<dd>Input data (cbc_design, cbc_choices, or data.frame)</dd>
<dt>require_class</dt>
<dd>Logical. If TRUE, strictly requires proper class. If FALSE,
allows data.frames with correct structure.</dd>
<dt>allow_choices</dt>
<dd>Logical. If TRUE, allows cbc_choices objects. Default TRUE.</dd></dl>

Arguments

Validate and potentially reconstruct a CBC design object — validate_design_object

<dl>

<dt>data</dt>
<dd>Input data (cbc_design, cbc_choices, or data.frame)</dd>


<dt>require_class</dt>
<dd>Logical. If TRUE, strictly requires proper class. If FALSE,
allows data.frames with correct structure.</dd>


<dt>allow_choices</dt>
<dd>Logical. If TRUE, allows cbc_choices objects. Default TRUE.</dd>

</dl>

validate_design_object: Validate and potentially reconstruct a CBC design object

Description

Usage

Value

Arguments