R Observatory: Metrics for scpi version 4.0.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

scpi

4.0.1Package record

Synthetic Control Methods

0packages depend

46.9Kdownloads / year

56.6%test coverage

13/13flavors OK

Overview

About

Maintained by Matias D. CattaneoCRAN page ↗GitHub ↗Website ↗Issues ↗

Implementation of prediction and inference procedures for Synthetic Control methods using least square, lasso, ridge, or simplex-type constraints. Uncertainty is quantified with prediction intervals as developed in Cattaneo, Feng, and Titiunik (2021) doi:10.1080/01621459.2021.1979561 for a single treated unit and in Cattaneo, Feng, Palomba, and Titiunik (2027) doi:10.1162/rest_a_01588 for multiple treated units and staggered adoption. More details about the software implementation can be found in Cattaneo, Feng, Palomba, and Titiunik (2025) doi:10.18637/jss.v113.i01.

Install

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

install.packages("scpi", 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("nppackages/scpi")

Development version from nppackages/scpi. 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-scpi

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-scpi

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-scpi

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: 4.2 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-18
WARNING10 OK, 3 WARNING2026-06-10
OK13 OK2026-06-09

Show 3 earlier changesHide 3 earlier changes

ERROR12 OK, 1 ERROR2026-06-07
OK14 OK2026-03-18
ERROR12 OK, 2 ERROR2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 4.0.1

READMENoVignettesNoNEWSNoCitation fileYes · cites a publicationWebsiteYes

Cites a JSS article

Help pages: 18includes a package overview page
Examples that run: 100%6 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 39% with a bibliography file

How these are measured

Downloads

46.9K

CRAN downloads in the past year

Rank #5,041 · ~128/day · ~3.9K/mo

Releases R versions

Daily download trend is not available in this view yet.

64530 days

1.6K90 days

46.9K1 year

Compare downloads with other packages →

Also on116 r2u5 autocran41 c2d4u

How downloads are counted

Repository

nppackages/scpi ↗Organization: nppackages

44Stars

11Forks

0Open issues

0Open PRs

0Releases

127Commits

3Commit identities

pythonrprediction-intervalsstatasynthetic-control

127 commits · Last activity 2026-08-14 · -2.2% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2026-07-14 · 442026-10-13 · 44

How these are measured

PracticesBeta

7 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/nppackages/scpi on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux

Governance and community (3)

Issue templatesPR templateSecurity policy

Automation and maintenance (1)

Dependabot

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

20 external dependencies (excludes base and recommended)

Installing scpi adds 73 packages (45 with compiled code, 66 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, clarabel 5.7 MB.

Depends (1)

R >= 4.1.0

Imports (23)

abind CVXR doSNOW dplyr (>= 1.0.7)ECOSolveR fastDummies foreach ggplot2 magrittr MASS (>= 7.3)Matrixmethodsparallel (>= 4.1.0)purrr Qtools reshape2 (>= 1.4.4)Rdpack rlangstatsstringr tibble tidyrutils

LinkingTo (0)

none

Suggests (1)

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 (4)

Matias D. Cattaneo

Author, Maintainer since 4.0.0 (2026)

Yingjie Feng

Author

Filippo Palomba

Author

Rocio Titiunik

Author

Previously maintained by Filippo Palomba (0.1 to 3.0.2).

Listed in earlier versions (2)

Matias Cattaneo

no longer listed · 0.1 to 3.0.2

Cattaneo

no longer listed · 4.0.0 to 4.0.1

Releases (17)

Pick two releases to compare their code metrics.

4.0.1Latest
record
2026-06-10 · current release · diff ↗
4.0.0
record
2026-06-03 · diff ↗
R
R 4.6.0 released · 2026-04-24
3.0.2
record
2026-03-07 · diff ↗
3.0.1
record
2025-07-04 · diff ↗
R
R 4.5.0 released · 2025-04-11
3.0.0
record
2025-01-31 · diff ↗
2.2.6
record
2024-11-12 · diff ↗
R
R 4.4.0 released · 2024-04-24
2.2.5
record
2023-11-01 · diff ↗
2.2.4
record
2023-05-20 · diff ↗
2.2.3
record
2023-05-11 · diff ↗
2.2.2
record
2023-04-21 · diff ↗
R
R 4.3.0 released · 2023-04-21
2.2.1
record
2023-03-15 · diff ↗
2.1.0
record
2022-12-25 · diff ↗

Show 7 earlier eventsHide 7 earlier events

2.0.1
record
2022-11-21 · diff ↗
2.0.0
record
2022-10-10 · diff ↗
1.0.0
record
2022-09-08 · diff ↗ ·
added 2 exports
scdataMulti, scplotMulti
R
R 4.2.0 released · 2022-04-22
0.2.1
record
2022-03-24 · diff ↗
0.1
record
2022-02-23
R
R 4.1.0 released · 2021-05-18

Package metadata

First published: 2022-02-23
Total releases: 17 / 4 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.1.0
Bundled data: 17 KB / 1 file
Download size: 178 KB

Appears in task views

Causal Inference

Cite

Cite this package

Run in R for the authors' entry:

citation("scpi")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.18637/jss.v113.i01.

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 scpi version 4.0.1 [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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