sprtt

0.3.1

Sequential Probability Ratio Tests Toolbox

0packages depend

3Kdownloads / year

88.5%test coverage

13/13checks pass

Overview

About

Maintained by Meike Snijder-SteinhilberFirst published 2021-08-063 releasesCRAN page ↗GitHub ↗

A toolbox for Sequential Probability Ratio Tests (SPRT) based on Wald (1945) doi:10.2134/agronj1947.00021962003900070011x. SPRTs are applied during the sampling process, ideally after each observation, and at every stage return a decision to either continue sampling or terminate and accept one of the specified hypotheses. The `seq_ttest()` function performs one-sample, two-sample, and paired t-tests for one- and two-sided hypotheses (Schnuerch & Erdfelder (2019) doi:10.1037/met0000234). The `seq_anova()` function performs a sequential one-way fixed effects ANOVA (Steinhilber et al. (2024) doi:10.1037/met0000677). The `plan_sample_size()` function helps plan sequential studies by simulating required sample sizes across a range of effect sizes. For more information, see the vignettes browseVignettes(package = "sprtt") or the package website https://meikesteinhilber.github.io/sprtt/.

Install

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

install.packages("sprtt", 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("MeikeSteinhilber/sprtt")

Development version from MeikeSteinhilber/sprtt. 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-sprtt

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# 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-sprtt

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 3.5 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 2.04

88.5%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-05-07
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-10
12 OK · 0 NOTE · 0 WARNING · 2 ERROR · 0 FAILURE

Documentation

READMEYes · 296 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 56%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

CRAN downloads in the past year

Rank #11,098 · ~8/day · ~251/mo

Releases R versions

Daily download trend is not available in this view yet.

31330 days

93290 days

3K1 year

Compare downloads with other packages →

Also on96 r2u36 autocran

Repository

GitHub ↗ meikesteinhilber/sprtt

7Stars

1Forks

0Open issues

0Open PRs

4Releases

475Commits

2Contributors

sprttest-statisticrsequential

License AGPL-3.0 · 475 commits · Last activity 2026-05-20 · 0% stars, 30d

Stars over time

2024-12-14 · 62026-07-07 · 7

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/meikesteinhilber/sprtt on 2026-07-26.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Docs source (1)

README.Rmd

Show all practices

Lint, format, editor (1)

RStudio project

Coverage (1)

Codecov

Governance and community (1)

Issue templates

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

21 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (15)

rappdirsmethodsstatsdplyr MBESS purrr glue ggplot2 lifecycle knitr rmarkdown gt ggtext scales piggyback

LinkingTo (0)

none

Suggests (8)

testthat testthis withr xml2 effsize effectsize vdiffr diffviewer

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (3)

Maintainer (1)

Meike Snijder-Steinhilber

Author, Maintainer · added in 0.3.1

Authors (3)

Meike Snijder-Steinhilber

Author, Maintainer · added in 0.3.1

Martin Schnuerch

Author, Thesis advisor

Anna-Lena Schubert

Author, Thesis advisor

Listed in earlier versions (1)

Meike Steinhilber

no longer listed · 0.1.0 to 0.2.0

Package Timeline

3 releases. Pick two to compare their code metrics. R releases are shown for context.

0.3.1Latest
2026-05-06 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.2.0
2023-07-06 · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
0.1.0
2021-08-06
R
R 4.1.0 released · 2021-05-18

Package metadata

First published: 2021-08-06
Total releases: 3 / 5 yrs
License: AGPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Bundled data: 5.1 KB / 3 files
Download size: 915 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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