R Observatory: Metrics for EMSS version 1.1.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

EMSS

1.1.1Package record

Some EM-Type Estimation Methods for the Heckman Selection Model

0packages depend

2.6Kdownloads / year

52.7%test coverage

11/13flavors OK

Overview

About

Maintained by Sang Kyu LeeCRAN page ↗GitHub ↗Issues ↗

Some EM-type algorithms to estimate parameters for the well-known Heckman selection model are provided in the package. Such algorithms are as follow: ECM(Expectation/Conditional Maximization), ECM(NR)(the Newton-Raphson method is adapted to the ECM) and ECME(Expectation/Conditional Maximization Either). Since the algorithms are based on the EM algorithm, they also have EM’s main advantages, namely, stability and ease of implementation. Further details and explanations of the algorithms can be found in Zhao et al. (2020) <doi: 10.1016/j.csda.2020.106930>.

Changes in 1.1.1

There is a modification with handling the missing data. We changed the warning message and new approach of handling missing data is adapted to both selection data and response data.

From NEWS.md in the release

Install

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

install.packages("EMSS", 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("SangkyuStat/EMSS")

Development version from SangkyuStat/EMSS. 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-emss

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-EMSS

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-EMSS

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Sang Kyu Lee <leesa111@msu.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Kexuan",
                      family = "Yang",
                      role = "aut",
                      email = "717260446@qq.com"),
               person(given = c("Sang", "Kyu"),
                      family = "Lee",
                      role = c("aut", "cre"),
                      email = "leesa111@msu.edu"),
               person(given = "Jun",
                      family = "Zhao",
                      role = "aut",
                      email = "zhaojun2021@hotmail.com"),
               person(given = "Hyoung-Moon",
                      family = "Kim",
                      role = "aut",
                      email = "hmk966a@gmail.com"))
as necessary.

CRAN check page ↗

Slowest check: 2.3 min · r-oldrel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTE2026-06-09
ERROR11 OK, 1 NOTE, 1 ERROR2026-06-08
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.1.1

READMENoVignettesNoNEWSYes · 67% structured · mentions 1.1.1Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 6
Examples that run: 100%5 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 33%

How these are measured

Downloads

2.6K

CRAN downloads in the past year

Rank #17,198 · ~7/day · ~216/mo

Releases R versions

Daily download trend is not available in this view yet.

26430 days

74990 days

2.6K1 year

Compare downloads with other packages →

Also on73 r2u3 autocran

How downloads are counted

Repository

sangkyustat/emss ↗Account: SangkyuStat

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2021-12-21

Responsiveness

not measured

How these are measured

PracticesBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/sangkyustat/emss on 2026-10-25.

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing EMSS adds 68 packages (35 with compiled code, 63 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, doBy 4.3 MB.

Depends (1)

R >= 2.10

Imports (2)

sampleSelection mvtnorm

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 (from the free-text Author field) (4)

· added in 1.0.2

Maintainer since 1.0.0 (2020)

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
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
1.1.1Latest
record
2022-01-10 · current release · diff ↗
R
R 4.1.0 released · 2021-05-18
1.1.0
record
2021-05-10 · diff ↗
1.0.2
record
2020-08-28 · diff ↗
1.0.1
record
2020-05-31 · diff ↗
1.0.0
record
2020-05-29
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2020-05-29
Total releases: 5 / 6 yrs
License: GPL-2 OSI
Minimum R: ≥ 2.10
Bundled data: 5.1 KB / 1 file
Download size: 20 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("EMSS")

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 EMSS version 1.1.1 [Data set]. HJJB, LLC. Data release v2026-10-26. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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