p_direction

Estimate the probability that a parameter is strictly positive
(or strictly negative) under the posterior, based on simulated draws
from a <code>qbrms_fit</code>.

Provides a 'brms'-like interface for fitting Bayesian regression models
using 'INLA' (Integrated Nested Laplace Approximations) and 'TMB' (Template Model Builder).
The package offers faster model fitting while maintaining familiar 'brms' syntax and
output formats. Supports fixed and mixed effects models, multiple probability distributions,
conditional effects plots, and posterior predictive checks with summary methods compatible
with 'brms'. 'TMB' integration provides fast ordinal regression capabilities. Implements
methods adapted from 'emmeans' for marginal means estimation and 'bayestestR' for Bayesian
inference assessment. Methods are based on Rue et al. (2009) <doi:10.1111/j.1467-9868.2008.00700.x>,
Kristensen et al. (2016) <doi:10.18637/jss.v070.i05>, Lenth (2016) <doi:10.18637/jss.v069.i01>,
Bürkner (2017) <doi:10.18637/jss.v080.i01>, Makowski et al. (2019) <doi:10.21105/joss.01541>,
and Kruschke (2014, ISBN:9780124058880).

Tony Myers

qbrms

Quick Bayesian Regression Models Using 'INLA' with 'brms' Syntax

p_direction function

<dl><dt>object</dt>
<dd>A <code>qbrms_fit</code> object.</dd>
<dt>parameters</dt>
<dd>Optional character vector of parameter names. If <code>NULL</code>,
all fixed-effect coefficients are used.</dd>
<dt>nsim</dt>
<dd>Number of draws to simulate from the fitted summary.</dd>
<dt>null</dt>
<dd>Numeric value defining the reference for direction (default 0).</dd></dl>

Arguments

Probability of Direction (pd) — p_direction

<dl>

<dt>object</dt>
<dd>A <code>qbrms_fit</code> object.</dd>


<dt>parameters</dt>
<dd>Optional character vector of parameter names. If <code>NULL</code>,
all fixed-effect coefficients are used.</dd>


<dt>nsim</dt>
<dd>Number of draws to simulate from the fitted summary.</dd>


<dt>null</dt>
<dd>Numeric value defining the reference for direction (default 0).</dd>

</dl>

p_direction: Probability of Direction (pd)

Description

Usage

Value

Arguments