apollo_longToWide

Converts choice data from long to wide format, with one row per observation as opposed to one row per alternative/observation.

Choice models are a widely used technique across numerous scientific disciplines. The Apollo package is a very flexible tool for the estimation and application
of choice models in R. Users are able to write their own
model functions or use a mix of already available ones. Random heterogeneity,
both continuous and discrete and at the level of individuals and
choices, can be incorporated for all models. There is support for both standalone
models and hybrid model structures. Both classical
and Bayesian estimation is available, and multiple discrete
continuous models are covered in addition to discrete choice.
Multi-threading processing is supported for estimation and a large
number of pre and post-estimation routines, including for computing posterior
(individual-level) distributions are available.
For examples, a manual, and a support forum, visit
<https://www.ApolloChoiceModelling.com>. For more information on choice
models see Train, K. (2009) <isbn:978-0-521-74738-7> and Hess,
S. & Daly, A.J. (2014) <isbn:978-1-781-00314-5> for an overview
of the field.

Stephane Hess

apollo

Tools for Choice Model Estimation and Application

David Palma

Thomas Hancock

apollo_longToWide function

<dl><dt>longData</dt>
<dd>data.frame. Data in long format.</dd>
<dt>longToWide_settings</dt>
<dd>List. Contains settings for this function. User input is required for all settings.<ul>
<li><code>altColumn</code>: Character. Name of column in long data that contains the names of the alternatives (either numeric or character).</li>
<li><code>altSpecAtts</code>: Character vector. Names of columns in long data with attributes that vary across alternatives within an observation.</li>
<li><code>choiceColumn</code>: Character. Name of column in long data that contains the choice indicator, coded 1 for the chosen alternative and 0 otherwise.</li>
<li><code>idColumn</code>: Character. Name of column in long data that contains the ID of individuals.</li>
<li><code>obsColumn</code>: Character. Name of column in long data that contains the observation index.</li>
</ul></dd></dl>

Arguments

Converts data from long to wide format. — apollo_longToWide

<dl>

<dt>longData</dt>
<dd>data.frame. Data in long format.</dd>


<dt>longToWide_settings</dt>
<dd>List. Contains settings for this function. User input is required for all settings.<ul>
<li><code>altColumn</code>: Character. Name of column in long data that contains the names of the alternatives (either numeric or character).</li>
<li><code>altSpecAtts</code>: Character vector. Names of columns in long data with attributes that vary across alternatives within an observation.</li>
<li><code>choiceColumn</code>: Character. Name of column in long data that contains the choice indicator, coded 1 for the chosen alternative and 0 otherwise.</li>
<li><code>idColumn</code>: Character. Name of column in long data that contains the ID of individuals.</li>
<li><code>obsColumn</code>: Character. Name of column in long data that contains the observation index.</li>
</ul></dd>

</dl>

apollo_longToWide: Converts data from long to wide format.

Description

Usage

Value

Arguments