run_hyper

Separate function for running only the group-level model. This can be useful in a
two-step analysis. Works similar in functionality to make_emc,
except also does the fitting and returns an emc object that works with
most posterior checking tests (but not the data generation/posterior predictives).

Fit Bayesian (hierarchical) cognitive models
using a linear modeling language interface using particle Metropolis Markov
chain Monte Carlo sampling with Gibbs steps. The diffusion decision model (DDM),
linear ballistic accumulator model (LBA), racing diffusion model (RDM), and the lognormal
race model (LNR) are supported. Additionally, users can specify their own likelihood
function and/or choose for non-hierarchical
estimation, as well as for a diagonal, blocked or full multivariate normal
group-level distribution to test individual differences. Prior specification
is facilitated through methods that visualize the (implied) prior.
A wide range of plotting functions assist in assessing model convergence and
posterior inference. Models can be easily evaluated using functions
that plot posterior predictions or using relative model comparison metrics
such as information criteria or Bayes factors.
References: Stevenson et al. (2024) <doi:10.31234/osf.io/2e4dq>.

Niek Stevenson

EMC2

Bayesian Hierarchical Analysis of Cognitive Models of Choice

Michelle Donzallaz

Andrew Heathcote

Steven Miletić

Raphael Hartmann

Karl C. Klauer

Steven G. Johnson

Jean M. Linhart

Brian Gough

Gerard Jungman

Rudolf Schuerer

Przemyslaw Sliwa

Jason H. Stover

run_hyper function

<dl><dt>type</dt>
<dd>A string indicating whether to run a <code>standard</code> group-level, <code>blocked</code>, <code>diagonal</code>, <code>factor</code>, or <code>single</code> (i.e., non-hierarchical) model.</dd>
<dt>data</dt>
<dd>A data frame, or a list of data frames. Needs to have the variable <code>subjects</code> as participant identifier.</dd>
<dt>prior</dt>
<dd>an emc.prior object.</dd>
<dt>iter</dt>
<dd>Number of MCMC samples to collect.</dd>
<dt>n_chains</dt>
<dd>An integer. Specifies the number of mcmc chains to be run (has to be more than 1 to compute <code>rhat</code>).</dd>
<dt>...</dt>
<dd>Additional, optional arguments.</dd></dl>

Arguments

Run a Group-level Model. — run_hyper

<dl>

<dt>type</dt>
<dd>A string indicating whether to run a <code>standard</code> group-level, <code>blocked</code>, <code>diagonal</code>, <code>factor</code>, or <code>single</code> (i.e., non-hierarchical) model.</dd>


<dt>data</dt>
<dd>A data frame, or a list of data frames. Needs to have the variable <code>subjects</code> as participant identifier.</dd>


<dt>prior</dt>
<dd>an emc.prior object.</dd>


<dt>iter</dt>
<dd>Number of MCMC samples to collect.</dd>


<dt>n_chains</dt>
<dd>An integer. Specifies the number of mcmc chains to be run (has to be more than 1 to compute <code>rhat</code>).</dd>


<dt>...</dt>
<dd>Additional, optional arguments.</dd>

</dl>

Run a Group-level Model.

run_hyper: Run a Group-level Model.

Description

Usage

Value

Arguments