R Observatory: Metrics for CoSMoS version 2.2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

CoSMoS

2.2.0Package record

Complete Stochastic Modelling Solution

0packages depend

5.3Kdownloads / year

27.3%test coverage

13/13flavors OK

Overview

About

Maintained by Kevin ShookCRAN page ↗GitHub ↗

Makes univariate, multivariate, or random fields simulations precise and simple. Just select the desired time series or random fields’ properties and it will do the rest. CoSMoS is based on the framework described in Papalexiou (2018, doi:10.1016/j.advwatres.2018.02.013), extended for random fields in Papalexiou and Serinaldi (2020, doi:10.1029/2019WR026331), and further advanced in Papalexiou et al. (2021, doi:10.1029/2020WR029466) to allow fine-scale space-time simulation of storms (or even cyclone-mimicking fields).

Changes in 2.2.0

Internal refactoring — no breaking changes to the public API:

----------------

Homogenised code style throughout (double-quoted strings, no trailing return(), 2-space indent, consistent @return and @seealso tags)
Removed incorrect @export from internal helpers across 13 files (fixes spurious NAMESPACE entries for AR1, ARp, YW, N, rMSE, MSE, ECDF, optimACS, lmom, erfc, inv.erfc, seasonalACF, seasonalAR, stratifySeasonData, acf* helpers, and all pop* functions)
Merged source files to reduce duplication:
AR1.R + ARp.R -> ar-models.R
generateTS.R -> generate-ts.R

Show all changes in 2.2.0Hide the rest of the changes in 2.2.0

generateRF.r + generateMTS.r + generateRFFast.r + generateMTSFast.r -> generate-fields.R
ggamma.R + paretoII.R + burrXII.R + burrIII.R + gev.R -> distributions.R
actf.R + actfInv.R + acti.R -> actf.R
fitDist.R + fitACS.R + norm.R + errors.R -> fitting.R
analyzeTS.R + seasonalACF.R + seasonalAR.R + stratifyData.R -> seasonal.R
All S3 plot methods -> plot-methods.R
Internal utilities -> utils-internal.R
Fixed pre-existing bugs:
generateTS example used p = TRUE instead of p = NULL (BUG-06)
regenerateTS crashed after AR coefficient attribute rename (BUG-07)
regenerateTS applied AR coefficients in wrong order (BUG-08)
qburrXII operator-precedence ambiguity (BUG-09)
getACSArg/getDistArg failed when target functions were unexported, due to base::exists() searching the search path rather than the package namespace; fixed to use asNamespace("CoSMoS") lookup (BUG-10)
Extracted shared simulate_var() helper from identical generateRF / generateMTS bodies; extracted DHMgenSj / DHMgenSim from both Fast functions; removed dead stcsid parameter from generateRFFast and generateMTSFast
Fixed simulateTS to compute probability zero directly from stratified data instead of running the full reportTS reporting pipeline
Fixed rbind-in-loop growth pattern in seasonalAR
Fixed all class(x)[1] comparisons to use inherits() or is.*() per CRAN policy
Removed deprecated aes_string() calls; replaced with aes() + after_stat() / .data[[]]
Removed dead commented-out code throughout

From NEWS.md in the release

Install

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

install.packages("CoSMoS", 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("TycheLab/CoSMoS")

Development version from TycheLab/CoSMoS. 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-cosmos

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-CoSMoS

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-CoSMoS

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: 8.3 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.2.0

READMEYes · 193 wordsVignettesYes · 1 · dynamicNEWSYes · 33% structured · mentions 2.2.0Citation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 74 (27 internal)includes a package overview page
Examples that run: 100%49 run in a plain check
Exported functions with examples: 100%
Documented parameters: 88%
Return-value docs: 61%
Help pages citing references: 39%

Vignettes (1)

CoSMoS R | Complete Stochastic Modelling Solution

How these are measured

Downloads

5.3K

CRAN downloads in the past year

Rank #7,799 · ~15/day · ~443/mo

Releases R versions

Daily download trend is not available in this view yet.

40130 days

1.2K90 days

5.3K1 year

Compare downloads with other packages →

Also on337 r2u17 autocran122 c2d4u

How downloads are counted

Repository

tychelab/cosmos ↗Organization: TycheLab

15Stars

5Forks

1Open issues

1Open PRs

0Releases

86Commits

5Commit identities

License file reads as GPL-3.0 · 86 commits · Last activity 2026-05-07 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 80%
Median days to close, 50 most recently updated closed issues: 46
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-07-04 · 122026-07-23 · 15

How these are measured

PracticesBeta

3 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/tychelab/cosmos on 2026-10-22.

Continuous integration (2)

Travis CI (config file)AppVeyor

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

20 external dependencies (excludes base and recommended)

Installing CoSMoS adds 36 packages (17 with compiled code, 55 MB of source tarballs). Heaviest: BH 14 MB, ggplot2 6.0 MB, data.table 5.7 MB.

Depends (3)

R >= 3.5.0ggplot2 data.table

Imports (16)

utilsmethodsstatsgrDevicesnloptr MBAMatrixmAr matrixcalc mvtnorm patchwork animation ggquiver pracma plot3D Rcpp

LinkingTo (4)

Rcpp RcppEigen RcppNumerical BH

Suggests (3)

testthat knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (5)

Kevin Shook

Contributor, Maintainer since 2.0.0 (2020) · added in 2.0.0

Yannis Markonis

Author

Simon Michael Papalexiou

Author

Francesco Serinaldi

Author · added in 2.0.0

Filip Strnad

Author

Previously maintained by Filip Strnad (0.4.1 to 1.1.3).

Releases (8)

Pick two releases to compare their code metrics.

2.2.0Latest
record
2026-05-07 · current release · diff ↗ ·
removed 27 exports
AR1, ARp, ECDF, MSE, N, YW, acfburrXII, acffgn, acfparetoII, acfweibull, actfdiscreteInv, erfc, getACSArg, getDistArg, inv.erfc, lmom, optimACS, popcvar, popkurt, popmean, popsd, popskew, popvar, rMSE, seasonalACF, seasonalAR, stratifySeasonData

added 1 export
actpntsB6
R
R 4.6.0 released · 2026-04-24
2.1.2
record
2026-01-27 · diff ↗
2.1.1
record
2025-08-23 · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
2.1.0
record
2021-05-30 · diff ↗ ·
added 11 exports
advectionF, advectionFhyperbolic, advectionFradial, advectionFrotation, advectionFspiral, advectionFspiralCE, advectionFuniform, anisotropyT, anisotropyTaffine, anisotropyTswirl, anisotropyTwave
R
R 4.1.0 released · 2021-05-18
2.0.0
record
2020-07-16 · diff ↗ ·
added 13 exports
actfInv, actfdiscreteInv, checkRF, fitVAR, generateMTS, generateMTSFast, generateRF, generateRFFast, quickTSPlot, stcfclayton, stcfgneiting14, stcfgneiting16, stcs
R
R 4.0.0 released · 2020-04-24
unarchivedReturned to CRAN
2020-04-01
1.1.3
record
2020-04-01 · diff ↗ ·
added 7 exports
dgev, erfc, inv.erfc, mgev, pgev, qgev, rgev
archivedRemoved from CRAN
2020-03-22
check problems were not corrected in time
1.0.1
record
2019-05-09 · diff ↗ ·
removed 3 exports
checkmodel, checkplot, checksimulation

added 19 exports
ECDF, MSE, N, YW, analyzeTS, checkTS, fitACS, fitDist, getACSArg, getDistArg, lmom, optimACS, rMSE, reportTS, sample.moments, seasonalACF, seasonalAR, simulateTS, stratifySeasonData

Show 3 earlier eventsHide 3 earlier events

R
R 3.6.0 released · 2019-04-26
0.4.1
record
2019-04-11
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2019-04-11
Total releases: 8 / 7 yrs
License: GPL-3 OSI · relicensed from AGPL-3 in 2.2.0
Minimum R: ≥ 3.5.0
Bundled data: 311 KB / 2 files
Download size: 4.8 MB

Appears in task views

Hydrological Data and Modeling

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("CoSMoS")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

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 CoSMoS version 2.2.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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