validate_model_data

Perform lightweight diagnostics on the response and predictors to catch
common issues that derail model fitting (missingness, zero variance,
impossible values for specific families, simple multicollinearity flags,
and sample-size sanity checks).

internal

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

validate_model_data function

<dl><dt>formula</dt>
<dd>A model formula.</dd>
<dt>data</dt>
<dd>A <code>data.frame</code> containing the variables in the model.</dd>
<dt>family</dt>
<dd>A family object such as <code><a href="/link/gaussian()?package=qbrms&version=1.0.1" data-mini-rdoc="qbrms::gaussian()">gaussian()</a></code>, <code><a href="/link/binomial()?package=qbrms&version=1.0.1" data-mini-rdoc="qbrms::binomial()">binomial()</a></code>,
or <code><a href="/link/poisson()?package=qbrms&version=1.0.1" data-mini-rdoc="qbrms::poisson()">poisson()</a></code>. Used for basic, family-specific checks.</dd>
<dt>verbose</dt>
<dd>Logical; print a summary of issues found.</dd></dl>

Arguments

Validate data before model fitting — validate_model_data

<dl>

<dt>formula</dt>
<dd>A model formula.</dd>


<dt>data</dt>
<dd>A <code>data.frame</code> containing the variables in the model.</dd>


<dt>family</dt>
<dd>A family object such as <code><a href='https://rdrr.io/r/stats/family.html'>gaussian()</a></code>, <code><a href='https://rdrr.io/r/stats/family.html'>binomial()</a></code>,
or <code><a href='https://rdrr.io/r/stats/family.html'>poisson()</a></code>. Used for basic, family-specific checks.</dd>


<dt>verbose</dt>
<dd>Logical; print a summary of issues found.</dd>

</dl>

validate_model_data: Validate data before model fitting

Description

Usage

Value

Arguments