PSpower

2.0.0

Sample Size and Power for Propensity Score Weighted Estimators

0packages depend

2.6Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Bo LiuFirst published 2025-01-153 releasesCRAN page ↗

Computes sample size and power for causal inference studies that use propensity score (PS) weighting. Supports continuous, binary, and time-to-event (survival) outcomes under four estimands: average treatment effect (ATE), average treatment effect on the treated (ATT), average treatment effect on the controls (ATC), and average treatment effect on the overlap population (ATO). For continuous and binary outcomes, the asymptotic variance of the Hajek inverse probability weighting estimator is derived under a logit-normal propensity score model, approximated by a Beta distribution matched through the Bhattacharyya overlap coefficient. For survival outcomes, the asymptotic variance of the propensity-score- weighted partial likelihood estimator is used for randomized trials and observational studies. The Schoenfeld formula is also available for randomized trial settings.

Install

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

install.packages("PSpower", 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-pspower

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

# 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-PSpower

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-PSpower

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

Health

CRAN checks

13OK

Slowest check: 1.3 min · r-release-macos-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

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

Downloads

2.6K

CRAN downloads in the past year

Rank #10,495 · ~7/day · ~220/mo

Releases R versions

Daily download trend is not available in this view yet.

24730 days

1K90 days

2.6K1 year

Compare downloads with other packages →

Also on105 r2u34 autocran

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (1)

stats

LinkingTo (0)

none

Suggests (4)

ggplot2 knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (3)

Maintainer (1)

Bo Liu

Author, Maintainer

Authors (3)

Bo Liu

Author, Maintainer

Fan Li

Author

Chengxin Yang

Author · added in 2.0.0

Listed in earlier versions (1)

Xiaoxiao Zhou

no longer listed · 0.1.0 to 0.1.1

Package Timeline

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

2.0.0Latest
2026-05-14 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.1.1
2025-04-02 · diff ↗
0.1.0
2025-01-15
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2025-01-15
Total releases: 3 / 1 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Download size: 4.5 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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