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feisr

1.3.1

Estimating Fixed Effects Individual Slope Models

1packages depend
48.6Kdownloads / year
72.2%test coverage
13/13checks pass

Overview

About
Maintained by Tobias RuettenauerFirst published 2019-03-019 releasesCRAN page ↗GitHub ↗

Provides the function feis() to estimate fixed effects individual slope (FEIS) models. The FEIS model constitutes a more general version of the often-used fixed effects (FE) panel model, as implemented in the package 'plm' by Croissant and Millo (2008) doi:10.18637/jss.v027.i02. In FEIS models, data are not only person demeaned like in conventional FE models, but detrended by the predicted individual slope of each person or group. Estimation is performed by applying least squares lm() to the transformed data. For more details on FEIS models see Bruederl and Ludwig (2015, ISBN:1446252442); Frees (2001) doi:10.2307/3316008; Polachek and Kim (1994) doi:10.1016/0304-4076(94)90075-2; Ruettenauer and Ludwig (2020) doi:10.1177/0049124120926211; Wooldridge (2010, ISBN:0262294354). To test consistency of conventional FE and random effects estimators against heterogeneous slopes, the package also provides the functions feistest() for an artificial regression test and bsfeistest() for a bootstrapped version of the Hausman test.

Install

Health

CRAN checks
13OK
Slowest check: 3.9 min · r-release-macos-x86_64
Code health
Yes
Tests · ratio 0.42
72.2%
Coverage · measured lines
100%
Documentation · exports
5
Dependencies · direct
Check history
  • OK2026-08-05
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • NOTE2026-08-01
    12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • OK2026-03-10
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation
READMEYes · 386 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo
Examples that run
100%
Documented parameters
100%
Return-value docs
100%
References docs
46%

Downloads

48.6K
CRAN downloads in the past year
Rank #2,088 · ~133/day · ~4K/mo
Daily download trend is not available in this view yet.
2.9K30 days
9.6K90 days
48.6K1 year
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Repository

Repository
12Stars
2Forks
1Open issues
1Open PRs
11Releases
129Commits
4Contributors
129 commits · Last activity 2026-02-06 · 0% stars, 30d

Stars over time

2025-08-19 · 112026-07-07 · 12

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/ruettenauer/feisr on 2026-08-23.

Continuous integration (2)
GitHub ActionsTravis CI
CRAN release process (1)
cran-comments.md
Docs source (1)
README.Rmd
Lint, format, editor (1)
RStudio project
How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies
9 external dependencies (excludes base and recommended)
Depends (1)
R >= 3.4.0
Imports (5)
LinkingTo (0)
none
Enhances (0)
none
Reverse dependencies
1direct
0indirect

Code & Tests

Datasets

People & History

People (2)
Maintainer (1)
Author, Maintainer
Authors (2)
Author, Maintainer
Package Timeline

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

  • R
    R 4.6.0 released · 2026-04-24
  • 1.3.1Latest
    2026-02-06 · current release · diff ↗
  • 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
  • 1.3.0
    2022-04-01 · diff ↗
  • R
    R 4.1.0 released · 2021-05-18
  • 1.2.0
    2021-02-25 · diff ↗
  • 1.1.4
    2021-01-15 · diff ↗
  • 1.1.3
    2021-01-11 · diff ↗
  • 1.1.2
    2021-01-05 · diff ↗
  • 1.1.1
    2020-06-17 · diff ↗
  • 1.1.0
    2020-06-10 · diff ↗
  • R
    R 4.0.0 released · 2020-04-24
  • R
    R 3.6.0 released · 2019-04-26
Show 2 earlier events
  • 1.0.1
    2019-03-01
  • R
    R 3.5.0 released · 2018-04-23

Package metadata

First published
2019-03-01
Total releases
9 / 7 yrs
License
GPL (>= 2) OSI
Minimum R
≥ 3.4.0
Bundled data
48 KB / 1 file
Download size
223 KB
Installed size
not tracked yet
With dependencies
not tracked yet
Appears in task views

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("feisr")
Ruettenauer, T., & Ludwig, V. (2026). feisr: Estimating Fixed Effects Individual Slope Models (Version 1.3.1) [Computer software]. https://doi.org/10.32614/CRAN.package.feisr

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.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for feisr version 1.3.1 [Data set]. HJJB, LLC. Data release v2026-08-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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