stan-dev/docs

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Documentation for the Stan language and CmdStan

Stars: 43
Forks: 133
Open beginner issues: 0
Indexed issues: 91
Avg merge: 11h 32m
Merged PRs (30d): 4

Dominant language: TeX
License: No license data
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

Open All

91 open issues indexed

new User's Guide chapters/sections Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

stan-dev/docs#977 · Opened Sep 10, 2026
Document variance correction for sum to zero matrix Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

stan-dev/docs#973 · Opened Aug 26, 2026
copyright still says --2025 and should be --2026 Open

bug

Difficulty 1/5 1-3 hours Newbie friendliness 78/100

stan-dev/docs#971 · Opened Jul 28, 2026
more discussion of LOO in SUG apporximate cross-validation section Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

stan-dev/docs#963 · Opened Jul 12, 2026
generated quantities block - naming conventions for posterior predictive checks and cross-validation Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 58/100

stan-dev/docs#962 · Opened Jul 11, 2026
SBC documentation Open

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

stan-dev/docs#947 · 1 comment · Opened May 11, 2026
section in User's Guide on moving transformed parameters to local variables Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

stan-dev/docs#943 · Opened May 5, 2026
discuss pinning parameters in workflow in User's Guide Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 55/100

stan-dev/docs#942 · Opened May 5, 2026
add chapter on extreme value modeling to User's Guide Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 68/100

stan-dev/docs#941 · Opened May 5, 2026
Instructions for working with PRs from forks Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

stan-dev/docs#936 · 2 comments · Opened Mar 12, 2026
Add intuitive glossary of common terms Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

stan-dev/docs#929 · 2 comments · Opened Jan 22, 2026
Docs repo is too big to deploy Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

stan-dev/docs#928 · 4 comments · Opened Jan 13, 2026
renewal model time series example for User's Guide Open

enhancement good first issue

Difficulty 3/5 1-2 days Newbie friendliness 45/100

stan-dev/docs#925 · Opened Jan 3, 2026
Categorical logit generalized linear model (softmax regression): inconsistent notation for matrix sizes Open

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

stan-dev/docs#920 · 1 comment · Opened Nov 25, 2025
describe how to make sum-to-zero parameters "optional" in User's Guide Open

enhancement good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

stan-dev/docs#909 · Opened Oct 17, 2025
Missing functions: mdivide_left, mdivide_right Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

stan-dev/docs#908 · Opened Oct 10, 2025
Problem in the documentation for the autoregressive moving average model Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

stan-dev/docs#884 · 3 comments · Opened Jul 4, 2025
document that NUTS-HMC adaptive samplers modify/override any specified stepsize parameter. Open

stan-dev/docs#875 · 1 assignee · Opened Apr 26, 2025
Is Stan's affine transform type <offset, multiplier> restricted to scalars? Open

question

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

stan-dev/docs#870 · 1 comment · Opened Apr 2, 2025
CmdStan User's guide - sampler auxiliary output file option `diagnostic-file` needs more doc Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

stan-dev/docs#863 · Opened Mar 9, 2025
motivate Cholesky factor parameterizations in functions reference and elsewhere Open

enhancement good first issue

Difficulty 3/5 1-2 days Newbie friendliness 38/100

stan-dev/docs#849 · 1 reaction · Opened Jan 15, 2025
Ordinal logit documentation misses base case Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 58/100

stan-dev/docs#811 · 2 comments · Opened Sep 5, 2024
Supported argument types for reverse? Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

stan-dev/docs#798 · 6 comments · Opened Aug 5, 2024
document minimal hardware, OS requirements Open

build distributions

Difficulty 3/5 1-2 days Newbie friendliness 42/100

stan-dev/docs#787 · Opened May 27, 2024
question - mismatch between SUG chapters Open

question

Difficulty 3/5 1-2 days Newbie friendliness 42/100

stan-dev/docs#782 · 1 reaction · Opened May 17, 2024
Functions Reference - Array reductions contain vector-only signatures Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

stan-dev/docs#758 · 2 comments · Opened Apr 11, 2024
Add more in-depth description of Pathfinder to the reference-manual Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

stan-dev/docs#751 · 1 comment · Opened Apr 4, 2024
[User Guide] Stan Translation efforts Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

stan-dev/docs#749 · 3 comments · 2 reactions · Opened Mar 29, 2024
update issue templates Open

question

Difficulty 1/5 Under an hour Newbie friendliness 35/100

stan-dev/docs#715 · 2 comments · Opened Feb 22, 2024
Bring GLM function doc in line with other functions Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

stan-dev/docs#705 · Opened Jan 16, 2024
discuss propto with double vs. autodiff variables in User's Guide Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

stan-dev/docs#692 · 2 comments · Opened Dec 7, 2023
fix unit vector transform details in reference manual Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

stan-dev/docs#691 · Opened Nov 27, 2023
Complex accessor vectorization Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

stan-dev/docs#684 · 3 comments · Opened Nov 1, 2023
Document new adaptive sampler argument `save_metric` Open

enhancement

stan-dev/docs#681 · 1 assignee · Opened Oct 28, 2023
No docs for positive_ordered vector constraint transform Open

enhancement feature

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

stan-dev/docs#677 · 1 comment · Opened Oct 5, 2023
softplus note in Functions Reference Open

enhancement

Difficulty 1/5 Under an hour Newbie friendliness 50/100

stan-dev/docs#670 · 2 reactions · Opened Sep 6, 2023
CmdStan guide lacks doc on columns of `diagnose` output Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

stan-dev/docs#666 · 1 comment · Opened Aug 23, 2023
clarify advice on stationarity constraints for AR(k) processes (User's Guide) Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

stan-dev/docs#637 · Opened May 16, 2023
Dynamic programming version for 2 change pts Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

stan-dev/docs#623 · 6 comments · Opened Mar 9, 2023
User does not pass real t and vector state to ode, ode solver does Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

stan-dev/docs#619 · Opened Mar 1, 2023
Update GP chapter in Stan User Guide Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

stan-dev/docs#614 · 6 comments · Opened Jan 26, 2023
qualify equivalence of simplex transforms in reference manual Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 57/100

stan-dev/docs#613 · Opened Jan 11, 2023
give examples and cross-reference vectorized glms in SUG Open

distributions

Difficulty 4/5 3-5 days Newbie friendliness 35/100

stan-dev/docs#593 · Opened Nov 7, 2022
Clarify that sampling statements vs. target += may not always preserve sampling behavior Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

stan-dev/docs#588 · 5 comments · Opened Oct 13, 2022
OpenCL set-up documentation points to files that do not exist Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

stan-dev/docs#869 · 1 comment · Opened Aug 12, 2022
Section on ARMA should include stationary distribution Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

stan-dev/docs#572 · 1 comment · Opened Aug 5, 2022
establish style guide & harmonize notation Open

enhancement

stan-dev/docs#564 · 1 assignee · Opened Jul 12, 2022
CmdStan Guide needs better examples of compiler options Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

stan-dev/docs#505 · 1 reaction · Opened Mar 16, 2022
[FR] Propose that prior choice recommendations goes into SUG Open

enhancement good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

stan-dev/docs#502 · 1 comment · Opened Mar 4, 2022
[CI bug] If the built docs branch was not deleted, the build job fails but goes green Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

stan-dev/docs#495 · Opened Feb 15, 2022

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