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	723	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	16222	August 6, 2016
New loo package CRAN release v.2.10.0 Interfaces loo	0	30	June 26, 2026
Cannot install Cmdstan due to Windows 11 permissions issue CmdStan installation , windows	1	65	June 26, 2026
Models where Stan outperforms Nutpie/Walnuts Algorithms	17	681	June 26, 2026
Why does changing the reference level wildly change the predicted probabilities? brms mixed-model , posterior-predictive , brms	1	39	June 26, 2026
Debugging a "stuck" sampler on a complex-ish model Modeling fitting-issues	0	32	June 26, 2026
StanCon 2026: Early bird (and t-shirt) deadline in one week! Announcements stancon	5	188	June 25, 2026
The Gym-Session Problem Modeling	4	75	June 25, 2026
Hessian matrix of log-likelhood function that uses structure-of-array var_value<VectorXd> General	4	62	June 25, 2026
Race conditions between independent cmdstan model runs CmdStan	8	549	June 25, 2026
Informative Priors and Fitting Issues in Meta-Analysis Regression with Missing Covariates General fitting-issues	1	41	June 25, 2026
Diststan — distributed Stan fits across a network of computers General cmdstanr	1	82	June 25, 2026
Introducing the Stan JetBrains plugin General	2	130	June 25, 2026
Assessing influence of population-level predictors on one specific trial brms interpret-results , hypothesis-testing	1	49	June 25, 2026
New paper: To select or not: predictively consistent priors instead of model selection Publicity	0	77	June 24, 2026
LOO-pit for folded predictions: gamma regression vs gaussian regression General	1	73	June 24, 2026
Computing approximate Gaussian processes Modeling brms	6	199	June 24, 2026
Tidybayes, posterior prediction, and cmdstanr General techniques	5	729	June 24, 2026
Compile Stan model in Shiny App? RStan	22	4651	June 23, 2026
How to handle high Pareto k when observations are meaningful? Modeling rstan , techniques , loo	8	179	June 18, 2026
'Disjunction' of type traits (for combined varmat/matvar custom C++ template)? General techniques	11	164	June 18, 2026
Excess Death Study, Preprint + Source Code Publicity epidemiology	4	131	June 18, 2026
Understanding the Likelihood Model for the Cox Family in brms brms survival	5	368	June 16, 2026
Prior/link selection for sigma in distributional Gaussian model Modeling specification , brms	3	72	June 16, 2026
Vector-valued functions with manual gradients in external C++ General cmdstan , ode	20	1262	June 15, 2026
Using Laplace approximation for logistic normal multinomial model Modeling rstan , techniques , specification	13	373	June 13, 2026
Data Scientist Opening at Wegmans Jobs	2	203	June 10, 2026
StanCon 2026 deadline today! (AoE) Announcements stancon	0	79	June 10, 2026
A sufficient implementation of the multivariate normal lpdf Modeling techniques , specification	5	216	June 9, 2026