R Observatory: Metrics for projections version 0.6.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

projections

0.6.1Package record

Project Future Case Incidence

1packages depend

6.9Kdownloads / year

78.3%test coverage

13/13flavors OK

Overview

About

Maintained by Thibaut JombartCRAN page ↗GitHub ↗Website ↗Issues ↗

Provides functions and graphics for projecting daily incidence based on past incidence, and estimates of the serial interval and reproduction number. Projections are based on a branching process using a Poisson-distributed number of new cases per day, similar to the model used for estimating R in 'EpiEstim' or in 'earlyR', and described by Nouvellet et al. (2017) doi:10.1016/j.epidem.2017.02.012. The package provides the S3 class 'projections' which extends 'matrix', with accessors and additional helpers for handling, subsetting, merging, or adding these objects, as well as dedicated printing and plotting methods.

Changes in 0.6.1

Fixes and improvements

fixed tests of dates due failing due to changes in as.Date()
fixed example in the manpage of summary.projection

From NEWS.md in the release

Install

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

install.packages("projections", 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("reconhub/projections")

Development version from reconhub/projections. 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-projections

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-projections

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-projections

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: 1.5 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 0.6.1

README· In the repository, left out of the releaseVignettesNoNEWSYes · 100% structured · mentions 0.6.1Citation fileNoWebsiteYes · pkgdown

Help pages: 11
Examples that run: 100%7 run in a plain check
Exported functions with examples: 83%
Documented parameters: 100%
Return-value docs: 0%
Help pages citing references: 0%

How these are measured

Downloads

6.9K

CRAN downloads in the past year

Rank #7,532 · ~19/day · ~573/mo

Releases R versions

Daily download trend is not available in this view yet.

45530 days

1.2K90 days

6.9K1 year

Compare downloads with other packages →

Also on74 r2u2 autocran

How downloads are counted

Repository

reconhub/projections ↗Organization: reconhub

14Stars

8Forks

11Open issues

0Open PRs

5Releases

283Commits

7Commit identities

rr-package

283 commits · Last activity 2024-12-06

Responsiveness

How these are sampled

PRs merged (all time): 89%
Median days to close, 50 most recently updated closed issues: 6
Median days to close, 50 most recently updated closed PRs: 1

Stars over time

2024-04-01 · 142026-07-07 · 14

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/reconhub/projections on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux

Governance and community (3)

Code of conductIssue templatesPR template

Docs source (3)

README.Rmd

GitHub Pages site last deployed 2024-12-06 · The repository has a site deploy workflow

Coverage (1)

Coverage reporting

Show all practicesHide 2 practices

CRAN release process (1)

cran-comments.md

Lint, format, editor (2)

lintrRStudio project

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

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Installing projections adds 19 packages (7 with compiled code, 15 MB of source tarballs). Heaviest: ggplot2 6.0 MB, incidence 1.5 MB, isoband 1.5 MB.

Depends (1)

R >= 3.5.0

Imports (5)

statsutilsincidence ggplot2methods

LinkingTo (0)

none

Suggests (9)

testthat roxygen2 knitr rmarkdown outbreaks magrittr distcrete svglite EpiEstim

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Depends, Imports or LinkingTo, most downloaded first

ViroReportR

How these are counted

Code & Tests

People & History

People (6)

Thibaut Jombart

Author, Maintainer since 0.0.1 (2017)

Pierre Nouvellet

Author

Sangeeta Bhatia

Contributor · added in 0.3.0

Stephane Ghozzi

Contributor · added in 0.5.1

Zhian N. Kamvar

Contributor · added in 0.3.1

Tim Taylor

Contributor · added in 0.5.1

Releases (9)

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
0.6.1Latest
record
2024-12-06 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.6.0
record
2023-03-23 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
0.5.4
record
2021-04-22 · diff ↗
0.5.2
record
2020-12-17 · diff ↗
0.5.1
record
2020-06-30 · diff ↗ ·
added 2 exports
merge_add_projections, merge_projections
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.3.1
record
2018-08-27 · diff ↗
0.3.0
record
2018-06-20 · diff ↗ ·
removed 1 export
get_incidence

added 2 exports
add_projections, build_projections
0.1.1
record
2018-05-29 · diff ↗

Show 3 earlier eventsHide 3 earlier events

R
R 3.5.0 released · 2018-04-23
0.0.1
record
2017-12-06
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2017-12-06
Total releases: 9 / 9 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 3.5.0
Download size: 863 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("projections")

Format

Jombart, T., Bhatia, S., Ghozzi, S., Kamvar, Z. N., Nouvellet, P., & Taylor, T. (2024). projections: Project Future Case Incidence (Version 0.6.1) [Computer software]. https://doi.org/10.32614/CRAN.package.projections

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 projections version 0.6.1 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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