The Stan Forums

Topic	Replies	Views	Activity
StanCon 2026 registration and abstract submission are now open! Announcements Hi everyone! Registration for StanCon 2026 in Uppsala, Sweden, is now open! You can already register and submit abstracts for contributions. Our first keynote speaker will be announced soon. New this StanCon: In additi…	0	752	December 11, 2025
Welcome to the Stan Forums! The Stan Forums provide a community for asking and answering questions about all aspects of Stan. Before creating a new topic please search the Forums to see if your questions has already been answered. When posting ne…	0	16237	August 6, 2016
Lognormal family in brms brms	4	114	July 16, 2026
New User's Guide Intro, SEM, and user-defined constrained parameters chapters General docs	9	255	July 16, 2026
Model selection using ELPD LOOIC Modeling loo	2	85	July 16, 2026
Models where Stan outperforms Nutpie/Walnuts Algorithms	45	1455	July 16, 2026
Extremely slow phylogenetic mixed model in brms Modeling mixed-model , phylogenetic , brms	1	33	July 15, 2026
EIV model of temporal trend with Berkson-like error Modeling cmdstanr	4	72	July 15, 2026
LKJ prior throwing positivity exceptions Modeling fitting-issues	10	272	July 14, 2026
Using Laplace approximation for logistic normal multinomial model Modeling rstan , techniques , specification	15	477	July 14, 2026
Debugging a "stuck" sampler on a complex-ish model Modeling fitting-issues	9	237	July 14, 2026
Issues with phylogenetic model fit Modeling phylogenetic , brms	1	58	July 13, 2026
Shape constrained (e.g., monotonic) smooths in brms brms	10	1583	July 10, 2026
Multilevel multiresponse phylogenetic mixed models with brms Modeling techniques , specification , loo , brms	4	143	July 10, 2026
How can I deal with this heteroskedastic model? Modeling fitting-issues , brms	1	59	July 8, 2026
Vibe coded 3D Anaglyph animation of HMC General	0	84	July 8, 2026
"get_prior() shows only one group random intercept prior when using gr(by = ...), shouldn't there be two as this model assumes groups being drawn from separate distributions?" brms rstan , brms	0	43	July 8, 2026
Deep learning and Bayesian modeling citation comparision, surprising to me, comments sought Publicity	9	793	July 3, 2026
Measurement Error Model in Variables Modeling	3	159	July 1, 2026
Possible postdoc opportunity at Uppsala University: Bayesian computation, MCMC/HMC, biomathematics, or agent-based modeling Jobs	0	120	July 1, 2026
New loo package CRAN release v.2.10.0 Interfaces loo	3	191	June 30, 2026
The Gym-Session Problem Modeling	7	280	June 30, 2026
Diststan — distributed Stan fits across a network of computers General cmdstanr	2	150	June 27, 2026
Cannot install Cmdstan due to Windows 11 permissions issue CmdStan installation , windows	1	89	June 26, 2026
Why does changing the reference level wildly change the predicted probabilities? brms mixed-model , posterior-predictive , brms	1	108	June 26, 2026
StanCon 2026: Early bird (and t-shirt) deadline in one week! Announcements stancon	5	217	June 25, 2026
Hessian matrix of log-likelhood function that uses structure-of-array var_value<VectorXd> General	4	90	June 25, 2026
Race conditions between independent cmdstan model runs CmdStan	8	570	June 25, 2026
Informative Priors and Fitting Issues in Meta-Analysis Regression with Missing Covariates General fitting-issues	1	59	June 25, 2026
Introducing the Stan JetBrains plugin General	2	154	June 25, 2026

StanCon 2026 registration and abstract submission are now open!

Hi everyone! Registration for StanCon 2026 in Uppsala, Sweden, is now open! You can already register and submit abstracts for contributions. Our first keynote speaker will be announced soon. New this StanCon: In additi…

0

752

December 11, 2025

Welcome to the Stan Forums!

The Stan Forums provide a community for asking and answering questions about all aspects of Stan. Before creating a new topic please search the Forums to see if your questions has already been answered. When posting ne…