R Observatory: Metrics for sfaR version 1.0.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

sfaR

1.0.1Package record

Stochastic Frontier Analysis Routines

2packages dependsuggested by 1

9.2Kdownloads / year

12.6%test coverage

13/13flavors OK

Overview

About

Maintained by K Hervé DakpoCRAN page ↗GitHub ↗Issues ↗

Maximum likelihood estimation for stochastic frontier analysis (SFA) of production (profit) and cost functions. The package includes the basic stochastic frontier for cross-sectional or pooled data with several distributions for the one-sided error term (i.e., Rayleigh, gamma, Weibull, lognormal, uniform, generalized exponential and truncated skewed Laplace), the latent class stochastic frontier model (LCM) as described in Dakpo et al. (2021) doi:10.1111/1477-9552.12422, for cross-sectional and pooled data, and the sample selection model as described in Greene (2010) doi:10.1007/s11123-009-0159-1, and applied in Dakpo et al. (2021) doi:10.1111/agec.12683. Several possibilities in terms of optimization algorithms are proposed.

Changes in 1.0.1

BUG FIXES

In tests sfacross returns different output

***

From NEWS.md in the release

Install

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

install.packages("sfaR", 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("hdakpo/sfaR")

Development version from hdakpo/sfaR. 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-sfar

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-sfaR

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-sfaR

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: 7.1 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-27
NOTE12 OK, 1 NOTE2026-08-20
OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.1

READMEYes · 467 wordsVignettesNoNEWSYes · 100% structured · mentions 1.0.1Citation fileYes · computed when R runs itWebsitenot declared in DESCRIPTION

Help pages: 24includes a package overview page
Examples that run: 55%12 run in a plain check · 10 never run
Exported functions with examples: 90%
Documented parameters: 99%
Return-value docs: 90%
Help pages citing references: 54%

How these are measured

Downloads

9.2K

CRAN downloads in the past year

Rank #5,146 · ~25/day · ~766/mo

Releases R versions

Daily download trend is not available in this view yet.

72030 days

1.6K90 days

9.2K1 year

Compare downloads with other packages →

Also on94 r2u4 autocran

How downloads are counted

Repository

hdakpo/sfar ↗Account: hdakpo

6Stars

3Forks

47Open issues

0Open PRs

2Releases

182Commits

3Commit identities

License file reads as GPL-3.0 · 182 commits · Last activity 2026-05-05 · 0% stars, 30d · Default branch at 1.0.1.9000, ahead of CRAN 1.0.1 (checked 2026-10-18)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 4
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-01-02 · 42026-07-07 · 6

How these are measured

PracticesBeta

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

Checks run against github.com/hdakpo/sfar on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (1)

README.Rmd

CRAN release process (1)

cran-comments.md

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

Dependencies

Declared dependencies

15 external dependencies (excludes base and recommended)

Installing sfaR adds 40 packages (27 with compiled code, 22 MB of source tarballs). Heaviest: cubature 3.2 MB, Rcpp 1.8 MB, RcppEigen 1.7 MB.

Depends (1)

R >= 3.5.0

Imports (16)

cubature fastGHQuad Formula marqLevAlg maxLikmethodsmnorm nleqslv plm qrng randtoolbox sandwichstatstexreg trustOptim ucminf

LinkingTo (0)

none

Suggests (1)

lmtest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

Depends 1 · Imports 1

Suggested by 1

Depends, Imports or LinkingTo, most downloaded first

smfa micEconDistRay

Suggests, most downloaded first

metafrontier

How these are counted

Code & Tests

Datasets

People & History

People (4)

K Hervé Dakpo

Author, Maintainer since 1.0.0 (2023)

Yann Desjeux

Author

Arne Henningsen

Author · added in 1.0.0

Laure Latruffe

Author

Previously maintained by Yann Desjeux (0.0.91 to 0.1.1).

Releases (5)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.0.1Latest
record
2024-10-29 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
1.0.0
record
2023-07-04 · diff ↗ ·
added 6 exports
extract.sfacross, extract.sfalcmcross, extract.sfaselectioncross, logLik, sfalcmcross, sfaselectioncross
R
R 4.3.0 released · 2023-04-21
0.1.1
record
2022-05-05 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
0.1.0
record
2021-05-04 · diff ↗
0.0.91
record
2021-03-05
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2021-03-05
Total releases: 5 / 5 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Bundled data: 453 KB / 7 files
Download size: 667 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("sfaR")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

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 sfaR version 1.0.1 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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