R Observatory: Metrics for ALFAM2 version 4.2.14

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ALFAM2

4.2.14Package record

Dynamic Model of Ammonia Emission from Field-Applied Manure

0packages depend

3.9Kdownloads / year

56.8%test coverage

13/13flavors OK

Overview

About

Maintained by Sasha D. HafnerCRAN page ↗GitHub ↗Website ↗

An implementation of the ALFAM2 dynamic emission model for ammonia volatilization from field-applied animal slurry (manure with dry matter below about 15%). The model can be used to predict cumulative emission and emission rate of ammonia following field application of slurry. Predictions may be useful for emission inventory calculations, fertilizer management, assessment of mitigation strategies, or research aimed at understanding ammonia emission. Default parameter sets include effects of application method, slurry composition, and weather. The model structure is based on a simplified representation of the physical-chemical slurry-soil-atmosphere system. More information is available via citation("ALFAM2").

Changes in 4.2.14

Bug fixes

From v4.2 alfam2() could be run without TAN application rate, but this did not work when the conf.int argument was used. That problem was fixed.

Documentation

Minor change to description in DESCRIPTION and correction of year for most recent paper (2025).

From NEWS.md in the release

Install

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

install.packages("ALFAM2", 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("AU-BCE-EE/ALFAM2")

Development version from AU-BCE-EE/ALFAM2. 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-alfam2

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-ALFAM2

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-ALFAM2

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: 2.9 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-04-22
ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-03-13

Show 2 earlier changesHide 2 earlier changes

ERROR13 OK, 1 ERROR2026-03-12
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 4.2.14

README· In the repository, left out of the releaseVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 4.2.14Citation fileYes · cites a publicationWebsiteYes

Help pages: 3
Examples that run: 67%2 run in a plain check · 1 never run
Exported functions with examples: 100%
Documented parameters: 68%
Return-value docs: 100%
Help pages citing references: 100%

Vignettes (1)

Getting started with the ALFAM2 package HTML

How these are measured

Downloads

3.9K

CRAN downloads in the past year

Rank #9,675 · ~11/day · ~328/mo

Releases R versions

Daily download trend is not available in this view yet.

37630 days

1K90 days

3.9K1 year

Compare downloads with other packages →

Also on397 r2u55 autocran

How downloads are counted

Repository

au-bce-ee/alfam2 ↗Organization: AU-BCE-EE

9Stars

3Forks

10Open issues

0Open PRs

13Releases

505Commits

5Commit identities

License file reads as GPL-3.0 · 505 commits · Last activity 2026-09-01 · 0% stars, 30d · Default branch at 4.3.0.9000, ahead of CRAN 4.2.14 (checked 2026-10-21)

Responsiveness

How these are sampled

PRs merged (all time): 71%
Median days to close, 50 most recently updated closed issues: 106
Median days to close, 50 most recently updated closed PRs: 1

Stars over time

2024-11-20 · 82026-07-07 · 9

How these are measured

PracticesBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/au-bce-ee/alfam2 on 2026-10-21.

Continuous integration (1)

GitHub Actions

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

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Installing ALFAM2 adds 1 package (1 with compiled code, 1.8 MB of source tarballs). Heaviest: Rcpp 1.8 MB.

Depends (1)

R >= 3.5.0

Imports (2)

Rcppstats

LinkingTo (1)

Rcpp

Suggests (3)

tinytest 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 (6)

Sasha D. Hafner

Author, Maintainer since 4.0 (2024)

Author

Author

Author

Contributor

Contributor · added in 4.2

Releases (4)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
4.2.14Latest
record
2025-12-06 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
4.2
record
2024-11-08 · diff ↗
4.1.3
record
2024-06-17 · diff ↗
4.0
record
2024-06-05
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2024-06-05
Total releases: 4 / 2 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Bundled data: 15 KB / 4 files
Download size: 365 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ALFAM2")

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 ALFAM2 version 4.2.14 [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.

Report a problem with this page →