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…	1	500	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…	3	16104	August 26, 2022
Is there MRP with ordered logistic? Modeling	1	22	February 27, 2026
Gaussian Process with measurement uncertainty and a large number of observations Modeling rstan , fitting-issues	1	20	February 27, 2026
Error in sink(type = "output") : invalid connection on Mac OS brms	2	1322	February 27, 2026
How to deal with extremely small sample sizes in the MRP/MrsP ？ Modeling	1	18	February 27, 2026
Joint Modeling: Propogating uncertainty into predictors Modeling brms	20	169	February 27, 2026
Time Series Model Quality, Out of Sample Likelihood Modeling	3	34	February 27, 2026
Help us test a new progress bar for sampling in CmdStanR! Interfaces cmdstanr	0	34	February 26, 2026
Stan files for models in PosteriorDB General	5	78	February 25, 2026
StanCon Oral Presentation Deadline Today Announcements stancon	2	43	February 25, 2026
Stan Playground: Stan without installing Stan Publicity education , website	33	2143	February 25, 2026
Covariance matrix reconstruction in a stan_lmer model Modeling rstanarm	1	37	February 24, 2026
Comparing Gaussian, gamma, and lognormal versions of regression model Modeling brms	4	63	February 24, 2026
Memory issues when computing LOO/WAIC Modeling loo	3	468	February 23, 2026
Simulating time to event data with a lagged treatment effect General techniques , survival	0	32	February 23, 2026
Monte Carlo error for Pathfinder fit Algorithms cmdstanr	0	36	February 23, 2026
Feb 5th Bayesian Data Analysis Meetup Virtual Event Events	2	152	February 23, 2026
Stochastic Vol with Jumps that's smooth and well defined for MCMC Modeling	1	36	February 22, 2026
Question: Diagnostic status used in both interaction and derived predictor — better to use split models? Modeling rstan , fitting-issues , specification , brms	2	77	February 22, 2026
Posterior prediction terminology (hierarchical model) General posterior-predictive	2	56	February 21, 2026
Missing signatures for _jacobian and _constrain functions? General language	3	32	February 20, 2026
Design propoal: fold and static events Developers	3	101	February 20, 2026
SAVE THE DATE: The International Conference on Multilevel Analysis in Utrecht, The Netherlands Events	4	235	February 20, 2026
Ornstein–Uhlenbeck correlation structure in brms Modeling rstan , brms	6	134	February 20, 2026
Two-part mixture model on left-censored biomarker data Modeling techniques , fitting-issues , specification , hierarchical-model , brms	12	80	February 19, 2026
How to sample a (singular) covariance matrix under compositional constraint Modeling techniques , specification	14	214	February 19, 2026
Estimate time to run HMC Algorithms fitting-issues	5	45	February 19, 2026
StanCon 2026 Oral presentation deadline (25th of February) Announcements stancon	0	30	February 18, 2026
Model convergence issue Modeling fitting-issues	3	64	February 17, 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…

1

500

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…