R Observatory: Metrics for gammi version 0.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

gammi

0.2Package record

Generalized Additive Mixed Model Interface

0packages depend

2.2Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Nathaniel E. HelwigCRAN page ↗

An interface for fitting generalized additive models (GAMs) and generalized additive mixed models (GAMMs) using the 'lme4' package as the computational engine, as described in Helwig (2024) doi:10.3390/stats7010003. Supports default and formula methods for model specification, additive and tensor product splines for capturing nonlinear effects, and automatic determination of spline type based on the class of each predictor. Includes an S3 plot method for visualizing the (nonlinear) model terms, an S3 predict method for forming predictions from a fit model, and an S3 summary method for conducting significance testing using the Bayesian interpretation of a smoothing spline.

Install

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

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

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

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-gammi

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-gammi

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-gammi

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

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 9
Examples that run: 100%8 run in a plain check
Exported functions with examples: 100%
Documented parameters: 81%
Return-value docs: 100%
Help pages citing references: 100%

How these are measured

Downloads

2.2K

CRAN downloads in the past year

Rank #20,771 · ~6/day · ~187/mo

Releases R versions

Daily download trend is not available in this view yet.

23730 days

64790 days

2.2K1 year

Compare downloads with other packages →

Also on81 r2u3 autocran

How downloads are counted

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Installing gammi adds 8 packages (6 with compiled code, 11 MB of source tarballs). Heaviest: lme4 4.3 MB, nloptr 2.1 MB, Rcpp 1.8 MB.

Depends (1)

R >= 3.5.0

Imports (3)

lme4Matrixmethods

LinkingTo (0)

none

Suggests (0)

none

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 (1)

Nathaniel E. Helwig

Author, Maintainer since 0.1 (2024)

Listed in earlier versions (1)

Nathaniel E.

no longer listed · 0.1 to 0.2

Releases (2)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.2Latest
record
2025-01-30 · current release · diff ↗
0.1
record
2024-09-15
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2024-09-15
Total releases: 2 / 2 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.5.0
Bundled data: 8.5 KB / 1 file
Download size: 38 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("gammi")

Format

Helwig, N. E. (2025). gammi: Generalized Additive Mixed Model Interface (Version 0.2) [Computer software]. https://doi.org/10.32614/CRAN.package.gammi

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 gammi version 0.2 [Data set]. HJJB, LLC. Data release v2026-10-26. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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