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	769	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	16250	August 6, 2016
Random walk with positive differences and missing data Modeling fitting-issues , autoregressive-model	4	55	July 27, 2026
Passing a posterior distribution in as data to fix parameters in a subsequent model Modeling	2	80	July 27, 2026
Jacobian adjustment for parameters with parameter-based upper/lower bounds Modeling	4	26	July 27, 2026
How to deal with divergent transitions Modeling techniques	0	46	July 26, 2026
Estimating flood hazard curves with a hierarchical log-increment model Modeling	0	56	July 24, 2026
Bayesplot mcmc_pairs divergences error General bayesplot	5	95	July 24, 2026
Comparing a poisson model to a betabinomial model using loo-cv Modeling	10	268	July 24, 2026
Difficulty adding loo criterion to longitudinal truncated normal model Modeling fitting-issues , specification , loo , brms	14	249	July 24, 2026
Shape constrained (e.g., monotonic) smooths in brms brms	14	1704	July 23, 2026
Posterior distribution and heterogeneity in Bayesian three-level meta-analysis with brms brms	0	50	July 21, 2026
Models where Stan outperforms Nutpie/Walnuts Algorithms	47	1732	July 21, 2026
Extremely slow phylogenetic mixed model in brms Modeling mixed-model , phylogenetic , brms	5	161	July 20, 2026
Trouble fitting random walk plus exponential error Modeling fitting-issues , autoregressive-model	2	102	July 19, 2026
Model selection using ELPD LOOIC Modeling loo	4	178	July 18, 2026
Lognormal family in brms brms	4	162	July 16, 2026
New User's Guide Intro, SEM, and user-defined constrained parameters chapters General docs	9	352	July 16, 2026
EIV model of temporal trend with Berkson-like error Modeling cmdstanr	4	121	July 15, 2026
LKJ prior throwing positivity exceptions Modeling fitting-issues	10	316	July 14, 2026
Using Laplace approximation for logistic normal multinomial model Modeling rstan , techniques , specification	15	558	July 14, 2026
Debugging a "stuck" sampler on a complex-ish model Modeling fitting-issues	9	279	July 14, 2026
Issues with phylogenetic model fit Modeling phylogenetic , brms	1	71	July 13, 2026
Multilevel multiresponse phylogenetic mixed models with brms Modeling techniques , specification , loo , brms	4	164	July 10, 2026
How can I deal with this heteroskedastic model? Modeling fitting-issues , brms	1	74	July 8, 2026
Vibe coded 3D Anaglyph animation of HMC General	0	107	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	50	July 8, 2026
Deep learning and Bayesian modeling citation comparision, surprising to me, comments sought Publicity	9	825	July 3, 2026
Measurement Error Model in Variables Modeling	3	179	July 1, 2026
Possible postdoc opportunity at Uppsala University: Bayesian computation, MCMC/HMC, biomathematics, or agent-based modeling Jobs	0	142	July 1, 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

769

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

16250

August 6, 2016

Random walk with positive differences and missing data