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	755	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	16238	August 6, 2016
Difficulty adding loo criterion to longitudinal truncated normal model Modeling fitting-issues , specification , brms	0	3	July 18, 2026
Model selection using ELPD LOOIC Modeling loo	4	130	July 18, 2026
Trouble fitting random walk plus exponential error Modeling fitting-issues , autoregressive-model	1	26	July 18, 2026
Extremely slow phylogenetic mixed model in brms Modeling mixed-model , phylogenetic , brms	3	78	July 17, 2026
Lognormal family in brms brms	4	129	July 16, 2026
New User's Guide Intro, SEM, and user-defined constrained parameters chapters General docs	9	280	July 16, 2026
Models where Stan outperforms Nutpie/Walnuts Algorithms	45	1476	July 16, 2026
EIV model of temporal trend with Berkson-like error Modeling cmdstanr	4	90	July 15, 2026
LKJ prior throwing positivity exceptions Modeling fitting-issues	10	278	July 14, 2026
Using Laplace approximation for logistic normal multinomial model Modeling rstan , techniques , specification	15	485	July 14, 2026
Debugging a "stuck" sampler on a complex-ish model Modeling fitting-issues	9	240	July 14, 2026
Issues with phylogenetic model fit Modeling phylogenetic , brms	1	61	July 13, 2026
Shape constrained (e.g., monotonic) smooths in brms brms	10	1584	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	60	July 8, 2026
Vibe coded 3D Anaglyph animation of HMC General	0	91	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	795	July 3, 2026
Measurement Error Model in Variables Modeling	3	160	July 1, 2026
Possible postdoc opportunity at Uppsala University: Bayesian computation, MCMC/HMC, biomathematics, or agent-based modeling Jobs	0	121	July 1, 2026
New loo package CRAN release v.2.10.0 Interfaces loo	3	194	June 30, 2026
The Gym-Session Problem Modeling	7	283	June 30, 2026
Diststan — distributed Stan fits across a network of computers General cmdstanr	2	152	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	109	June 26, 2026
StanCon 2026: Early bird (and t-shirt) deadline in one week! Announcements stancon	5	218	June 25, 2026
Hessian matrix of log-likelhood function that uses structure-of-array var_value<VectorXd> General	4	92	June 25, 2026
Race conditions between independent cmdstan model runs CmdStan	8	570	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

755

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…