R Observatory: Metrics for dropR version 1.0.6

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

dropR

1.0.6Package record

Dropout Analysis by Condition

0packages depend

2.9Kdownloads / year

3.6%test coverage

13/13flavors OK

Overview

About

Maintained by Annika Tave OverlanderCRAN page ↗GitHub ↗Website ↗

Analysis and visualization of dropout between conditions in surveys and (online) experiments. Features include computation of dropout statistics, comparing dropout between conditions (e.g. Chi squared), analyzing survival (e.g. Kaplan-Meier estimation), comparing conditions with the most different rates of dropout (Kolmogorov-Smirnov) and visualizing the result of each in designated plotting functions. Article published in _Behavior Research Methods_ on 'dropR' by the authors: Dropout analysis: A method for data from Internet-based research and 'dropR', an R-based web app and package to analyze and visualize dropout. (2025) doi:10.3758/s13428-025-02730-2. Sources: Andrea Frick, Marie-Terese Baechtiger & Ulf-Dietrich Reips (2001) doi:10.5167/uzh-19758; Ulf-Dietrich Reips (2002) doi:10.1026//1618-3169.49.4.243.

Install

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

install.packages("dropR", 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("iscience-kn/dropR")

Development version from iscience-kn/dropR. 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-dropr

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-dropR

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-dropR

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-release-macos-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 1.0.6

READMEYes · 160 wordsVignettesYes · 2 · dynamicNEWSYes · 100% structured · does not mention 1.0.6Citation fileNoWebsiteYes · pkgdown

Help pages: 18 (1 internal)includes a package overview page
Examples that run: 100%14 run in a plain check
Exported functions with examples: 88%
Documented parameters: 98%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (2)

How these are measured

Downloads

2.9K

CRAN downloads in the past year

Rank #16,577 · ~8/day · ~243/mo

Releases R versions

Daily download trend is not available in this view yet.

25230 days

76790 days

2.9K1 year

Compare downloads with other packages →

Also on582 r2u4 autocran

How downloads are counted

Repository

iscience-kn/dropr ↗Organization: iscience-kn

7Stars

0Forks

2Open issues

0Open PRs

0Releases

194Commits

4Commit identities

dropoutexperimentspsychologysocial-science

License file reads as GPL-3.0 · 194 commits · Last activity 2026-03-04 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 13
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-10-17 · 72026-07-07 · 7

How these are measured

PracticesBeta

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

Checks run against github.com/iscience-kn/dropr on 2026-10-25.

Continuous integration (1)

GitHub Actions

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-03-04 · The repository has a site deploy workflow

pkgdown site last built 2026-03-04

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

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

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Installing dropR adds 42 packages (24 with compiled code, 43 MB of source tarballs). Heaviest: ggplot2 6.0 MB, data.table 5.7 MB, bslib 5.6 MB.

Depends (1)

R >= 3.0.0

Imports (5)

shiny ggplot2 data.tablesurvivallifecycle

LinkingTo (0)

none

Suggests (6)

DT shinydashboard knitr rmarkdown kableExtra testthat

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 (3)

Annika Tave Overlander

Author, Maintainer since 1.0.3 (2024) · added in 1.0.3

Matthias Bannert

Author · added in 1.0.3

Ulf-Dietrich Reips

Author · added in 1.0.3

Previously maintained by Matthias Bannert (0.1).

Listed in earlier versions (1)

Matthias Bannert <bannert@kof.ethz.ch> [aut, cre] Ulf-Dietrich Reips <reips@uni-konstanz.de> [aut]

no longer listed · 0.1

Releases (3)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.0.6Latest
record
2026-03-03 · current release · diff ↗ ·
added 1 export
do_print
R
R 4.5.0 released · 2025-04-11
unarchivedReturned to CRAN
2024-07-03
1.0.3
record
2024-07-03 · diff ↗ ·
removed 7 exports
compute_shares_remain, compute_xsq, extract_drop_out_from_df, find_drop_out, lineChartOutput, renderLineChart, startDropR

added 14 exports
add_dropout_idx, compute_stats, do_chisq, do_kpm, do_ks, do_or_table, do_steps, get_odds_ratio, get_steps_by_cond, get_survdiff, plot_do_curve, plot_do_kpm, plot_do_ks, start_app
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
archivedRemoved from CRAN
2022-06-15
check problems were not corrected despite reminders
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16

Show 2 earlier eventsHide 2 earlier events

0.1
record
2015-01-02
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2015-01-02
Total releases: 3 / 11 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.0.0
Bundled data: 2.0 KB / 1 file
Download size: 276 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("dropR")

Format

Overlander, A. T., Bannert, M., & Reips, U. (2026). dropR: Dropout Analysis by Condition (Version 1.0.6) [Computer software]. https://doi.org/10.32614/CRAN.package.dropR

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 dropR version 1.0.6 [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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