R Observatory: Metrics for sccic version 0.1.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

sccic

0.1.1

Synthetic Control Changes-in-Changes Estimator

0packages depend

1.6Kdownloads / year

45.6%test coverage

13/13checks pass

Overview

About

Maintained by Neil HwangFirst published 2026-04-092 releasesCRAN page ↗GitHub ↗

Implements the Changes-in-Changes (CIC) estimator of Athey and Imbens (2006) doi:10.1111/j.1468-0262.2006.00668.x combined with synthetic control methods. Provides both the continuous CIC estimator (Theorem 3.1) and the discrete CIC estimator (Theorem 4.1) for integer-valued outcomes, with analytic and bootstrap inference. Also provides nonparametric estimation of the entire counterfactual distribution of outcomes for a treated group, allowing evaluation of average, quantile, and distributional treatment effects. Synthetic control weights are constructed via elastic net regularization to handle settings with many potential control units.

Install

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

install.packages("sccic", 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("neilhwang/sccic")

Development version from neilhwang/sccic. 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-sccic

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-sccic

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-sccic

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

Health

CRAN checks

13OK

Slowest check: 2.9 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.09

45.6%

Coverage · measured lines

100%

Documentation · exports

2

Dependencies · direct

Check history

OK2026-08-04
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-10
5 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 67%
Documented parameters: 92%
Return-value docs: 100%
References docs: 7%

Downloads

1.6K

CRAN downloads in the past year

Rank #11,695 · ~5/day · ~137/mo

Releases R versions

Daily download trend is not available in this view yet.

19430 days

85990 days

1.6K1 year

Compare downloads with other packages →

Also on36 r2u25 autocran

Repository

GitHub ↗ neilhwang/sccic

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2026-03-30

Repository practices

Upstream repositoryBeta

Checks run against github.com/neilhwang/sccic on 2026-08-23.

No development-tooling practices detected in the upstream repository.

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

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (2)

glmnetstats

LinkingTo (0)

none

Suggests (7)

testthat knitr rmarkdown ggplot2 wooldridge qte Synth

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (1)

Maintainer (1)

Neil Hwang

Author, Maintainer

Authors (1)

Neil Hwang

Author, Maintainer

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.1.1Latest
2026-04-10 · current release · diff ↗
0.1.0
2026-04-09
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-04-09
Total releases: 2 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Download size: 32 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("sccic")

Format

Hwang, N. (2026). sccic: Synthetic Control Changes-in-Changes Estimator (Version 0.1.1) [Computer software]. https://doi.org/10.32614/CRAN.package.sccic

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 sccic version 0.1.1 [Data set]. HJJB, LLC. Data release v2026-08-26. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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