brms is an R package by Paul Bürkner which provides a high-level interface for fitting Bayesian multilevel (i.e. mixed effects) models, generalized linear / non-linear / multivariate models using Stan as the backend. It allows R users to specify complex Bayesian models using formula syntax similar to lme4 but with far more flexibility (distributions, link functions, hierarchical structure, nonlinear terms, etc.). It supports model diagnostics, posterior predictive checking, model comparison, custom priors, and advanced features such as distributional regression.

Features

  • Supports a very wide range of distributions and link functions: linear, robust linear, count, ordinal, survival, response times, zero-inflated, hurdle, mixture models etc.
  • Multilevel / hierarchical models: grouping factors, random effects etc.
  • Nonlinear and smooth terms (nonlinear modeling) and autocorrelation / time series structures etcetera
  • Flexible prior specification for all parts of the model (including custom priors)
  • Model diagnostics and model comparison: posterior predictive checks, leave-one-out cross-validation (LOO), comparison of fits etc.
  • Ability to work with user-specified covariance structures, meta-analytic standard errors, censoring/truncation etc.

Project Samples

Project Activity

See All Activity >

License

GNU General Public License version 3.0 (GPLv3)

Follow brms

brms Web Site

Other Useful Business Software
AI-generated apps that pass security review Icon
AI-generated apps that pass security review

Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
Try Retool free
Rate This Project
Login To Rate This Project

User Reviews

Be the first to post a review of brms!

Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

R

Related Categories

R Data Visualization Software

Registered

2025-09-12