R Observatory: Metrics for bnns version 1.0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

bnns

1.0.0Package record

Bayesian Neural Network with 'Stan'

0packages depend

3Kdownloads / year

90.3%test coverage

13/13flavors OK

Overview

About

Maintained by Swarnendu ChatterjeeCRAN page ↗GitHub ↗Website ↗Issues ↗

Offers a flexible formula-based interface for building and training Bayesian Neural Networks powered by 'Stan'. The package supports modeling complex relationships while providing rigorous uncertainty quantification via posterior distributions. With features like user chosen priors, clear predictions, and support for regression, binary, and multi-class classification, it is well-suited for applications in clinical trials, finance, and other fields requiring robust Bayesian inference and decision-making. References: Neal(1996) doi:10.1007/978-1-4612-0745-0.

Changes in 1.0.0

**New Feature**: Added full support for the tidymodels ecosystem, including integration with parsnip, recipes, workflows, and tune.
**New Feature**: Added GPU acceleration support for fitting Bayesian Neural Networks via OpenCL and cmdstanr.
**New Feature**: Introduced model evaluation metrics using Leave-One-Out (LOO) cross-validation (loo.bnns()) and Watanabe-Akaike Information Criterion (waic.bnns()).
**New Feature**: Added save_bnns() and load_bnns() functions for easy saving and loading of trained models.
**New Feature**: Added a plot.bnns() method for visualizing posterior distributions and model convergence.
**New Feature**: Added option to provide character input for act_fn and out_act_fn arguments.
Changed the package to stable lifecycle and prepared for CRAN submission.
Removed cmdstanr from package dependencies. It is now accessed dynamically to comply with CRAN policies.
Removed the manual rhub GitHub Actions badge from the README.
Added CODE_OF_CONDUCT.md.

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("bnns", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("swarnendu-stat/bnns")

Development version from swarnendu-stat/bnns. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-bnns

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-bnns

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-bnns

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.4 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-10-17
WARNING12 OK, 1 WARNING2026-10-01
OK13 OK2026-09-04
ERROR12 OK, 1 ERROR2026-08-06
OK13 OK2026-08-05

Show 7 earlier changesHide 7 earlier changes

NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-14
NOTE10 OK, 3 NOTE2026-06-09
ERROR8 OK, 4 NOTE, 1 ERROR2026-06-08
NOTE3 OK, 11 NOTE2026-04-22
ERROR3 OK, 10 NOTE, 1 ERROR2026-04-18
NOTE3 OK, 11 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.0

READMEYes · 572 wordsVignettesYes · 2 · evaluation depends on the environmentNEWSYes · 100% structured · mentions 1.0.0Citation fileNoWebsiteYes · pkgdown

The repository also keeps web-only articles.

Help pages: 23 (4 internal)
Examples that run: 58%7 run in a plain check · 5 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 69%
Documented parameters: 99%
Return-value docs: 92%
Help pages citing references: 4%

Vignettes (2)

bnns HTML
Using bnns with tidymodels HTML

How these are measured

Downloads

3K

CRAN downloads in the past year

Rank #10,808 · ~8/day · ~247/mo

Releases R versions

Daily download trend is not available in this view yet.

45730 days

94590 days

3K1 year

Compare downloads with other packages →

Also on95 r2u28 autocran

How downloads are counted

Repository

swarnendu-stat/bnns ↗Account: swarnendu-stat

4Stars

0Forks

0Open issues

0Open PRs

2Releases

84Commits

1Commit identities

84 commits · Last activity 2026-06-12 · 0% stars, 30d · Default branch at 1.0.0.9000, ahead of CRAN 1.0.0 (checked 2026-10-11)

Responsiveness

How these are sampled

PRs merged (all time): 0%
Median days to close, 50 most recently updated closed issues: 12
Median days to close, 50 most recently updated closed PRs: 22

Stars over time

2025-05-01 · 32026-07-07 · 4

How these are measured

PracticesBeta

12 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/swarnendu-stat/bnns on 2026-10-11.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux

Governance and community (1)

Code of conduct

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-06-12 · The repository has a site deploy workflow

pkgdown site last built 2026-06-12

Coverage (1)

Coverage reporting

Show all practicesHide 2 practices

CRAN release process (3)

cran-comments.mdrevdep/CRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

25 external dependencies (excludes base and recommended)

Installing bnns adds 49 packages (24 with compiled code, 44 MB of source tarballs). Heaviest: BH 14 MB, ggplot2 6.0 MB, loo 2.7 MB.

Depends (1)

R >= 4.2.0

Imports (8)

BH digest loo pROC RcppEigen rstanstatstibble

LinkingTo (0)

none

Suggests (18)

bayesplot covr dials dplyr ggplot2 knitr mlbench OpenCL parsnip ranger recipes rlang rmarkdown rsample testthat tidymodels tune workflows

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Swarnendu Chatterjee

Releases (2)

Pick two releases to compare their code metrics.

1.0.0Latest
record
2026-06-07 · current release · diff ↗ ·
removed 4 exports
generate_stan_code, generate_stan_code_bin, generate_stan_code_cat, generate_stan_code_cont

added 9 exports
L, act_fn, chains, iter, load_bnns, nodes, opencl_diagnostics, save_bnns, warmup
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.1.2
record
2025-01-13
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2025-01-13
Total releases: 2 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.2.0
Download size: 105 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("bnns")

Format

Chatterjee, S. (2026). bnns: Bayesian Neural Network with 'Stan' (Version 1.0.0) [Computer software]. https://doi.org/10.32614/CRAN.package.bnns

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for bnns version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-10-17. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-17, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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