koma

0.3.1

Bayesian Simultaneous Equation Models for Forecasting

0packages depend

30downloads / year

85.8%test coverage

11/12checks pass

Overview

About

Maintained by Merlin SchererFirst published 2026-07-291 releasesCRAN page ↗GitHub ↗

Estimate and forecast Bayesian simultaneous equation models for macroeconomic time series. Provides tools to specify systems of behavioral equations and accounting identities, transform and manage time series, simulate from the posterior using a Metropolis-within-Gibbs sampler, and generate unconditional and conditional forecasts with user-defined priors and restrictions. Methods are described in Rathke A. and Sarferaz S. (forthcoming) "Bayesian Estimation of Simultaneous Equations Model".

Install

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

install.packages("koma", 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("TimothyMerlin/koma")

Development version from TimothyMerlin/koma. 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-koma

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-koma

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

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

Health

CRAN checks

1NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 14.2 min · r-oldrel-macos-x86_64

Code health

Yes

Tests · ratio 0.89

85.8%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-08-01
10 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-07-30
5 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 209 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 91%
Return-value docs: 100%
References docs: 4%

Downloads

CRAN downloads in the past year

Rank #24,647 · ~0/day · ~3/mo

Releases R versions

Daily download trend is not available in this view yet.

3030 days

3090 days

301 year

Compare downloads with other packages →

Also on3 r2u

Repository

GitHub ↗ timothymerlin/koma

6Stars

0Forks

0Open issues

0Open PRs

1Releases

159Commits

1Contributors

License GPL-3.0 · 159 commits · Last activity 2026-08-01 · +50% stars, 30d

Stars over time

2026-07-30 · 42026-07-31 · 6

Repository practices

Upstream repositoryBeta

8 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/timothymerlin/koma on 2026-08-02.

Continuous integration (2)

GitHub ActionsGitLab CI

Reproducibility and dev environment (3)

renvdata-raw/Dockerfile

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Show all practices

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

21 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (12)

cli doFuture foreach glueMatrixmethodsprogressr (>= 0.15.0)purrr rlangstatstempdisaggutils

LinkingTo (0)

none

Suggests (13)

devtools ggplot2 usethis pkgdown knitr rmarkdown future parallelly withr texreg testthat plotly webshot2

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (8)

Maintainer (1)

Merlin Scherer

Author, Maintainer, Copyright holder

Authors (3)

Merlin Scherer

Author, Maintainer, Copyright holder

Laurent Florin

Author

Samad Sarferaz

Author, Copyright holder

Contributors (5)

Andrew D. Martin

Contributor, Copyright holder

Jong Hee Park

Contributor, Copyright holder

Kevin M. Quinn

Contributor, Copyright holder

Brian D. Ripley

Contributor, Copyright holder

Bill Venables

Contributor, Copyright holder

Merlin Scherer

Author, Maintainer, Copyright holder

Samad Sarferaz

Author, Copyright holder

Andrew D. Martin

Contributor, Copyright holder

Jong Hee Park

Contributor, Copyright holder

Kevin M. Quinn

Contributor, Copyright holder

Brian D. Ripley

Contributor, Copyright holder

Bill Venables

Contributor, Copyright holder

Package Timeline

1 release. R releases are shown for context.

0.3.1Latest
2026-07-29 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-07-29
Total releases: 1 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.1.0
Bundled data: 47 KB / 3 files
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

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