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nprobust

1.0.0

Kernel Density and Local Polynomial Regression Methods

3packages depend
27.3Kdownloads / year
72.1%test coverage
13/13checks pass

Overview

About
Maintained by Sebastian CalonicoFirst published 2016-11-0712 releasesCRAN page ↗GitHub ↗

Estimation, inference, bandwidth selection, and graphical procedures for kernel density and local polynomial regression methods, including robust bias-corrected confidence intervals as described in Calonico, Cattaneo and Farrell (2018, doi:10.1080/01621459.2017.1285776). The package includes 'lprobust()' for local polynomial point estimation and robust bias-corrected inference, 'lpbwselect()' for local polynomial bandwidth selection, 'kdrobust()' for kernel density point estimation and robust bias-corrected inference, 'kdbwselect()' for kernel density bandwidth selection, and 'nprobust.plot()' for plotting results. The main methodological and numerical features are described in Calonico, Cattaneo and Farrell (2019, doi:10.18637/jss.v091.i08).

Install

Health

CRAN checks
13OK
Slowest check: 2.2 min · r-oldrel-windows-x86_64
Code health
Yes
Tests · ratio 0.31
72.1%
Coverage · measured lines
100%
Documentation · exports
1
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
  • OK2026-04-22
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • ERROR2026-04-18
    13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
  • OK2026-03-10
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation
READMEYes · 203 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo
Examples that run
100%
Documented parameters
96%
Return-value docs
100%
References docs
100%

Downloads

27.3K
CRAN downloads in the past year
Rank #2,224 · ~75/day · ~2.3K/mo
Daily download trend is not available in this view yet.
2.4K30 days
8.7K90 days
27.3K1 year
Compare downloads with other packages →
Also on456 r2u23 autocran

Repository

Repository
3Stars
4Forks
1Open issues
0Open PRs
0Releases
39Commits
2Contributors
39 commits · Last activity 2026-05-27 · 0% stars, 30d

Stars over time

2024-11-20 · 22026-07-07 · 3

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/nppackages/nprobust on 2026-08-16.

Continuous integration (1)
GitHub Actions
Governance and community (2)
Issue templatesSecurity policy
Git structural (1)
.gitattributes
How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies
4 external dependencies (excludes base and recommended)
Depends (1)
R >= 3.6.0
Imports (1)
LinkingTo (0)
none
Enhances (0)
none
Reverse dependencies
3direct
1indirect

Code & Tests

People & History

People (3)
Maintainer (1)
Author, Maintainer
Authors (3)
Author, Maintainer
Listed in earlier versions (3)
no longer listed · 0.5.0 to 1.0.0
no longer listed · 0.5.0 to 1.0.0
no longer listed · 0.5.0 to 1.0.0
Package Timeline

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

  • 1.0.0Latest
    2026-05-19 · current release · diff ↗
  • R
    R 4.6.0 released · 2026-04-24
  • 0.5.0
    2025-04-14 · 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
  • R
    R 4.1.0 released · 2021-05-18
  • 0.4.0
    2020-08-26 · diff ↗
  • R
    R 4.0.0 released · 2020-04-24
  • 0.3.0
    2020-04-02 · diff ↗
  • 0.2.1
    2019-10-30 · diff ↗
  • 0.2.0
    2019-10-22 · diff ↗
  • R
    R 3.6.0 released · 2019-04-26
  • 0.1.4
    2019-01-11 · diff ↗
  • 0.1.3
    2018-05-01 · diff ↗
Show 7 earlier events
  • R
    R 3.5.0 released · 2018-04-23
  • 0.1.2
    2018-03-16 · diff ↗
  • 0.1.1
    2017-09-15 · diff ↗
  • 0.1.0
    2017-09-01 · diff ↗
  • R
    R 3.4.0 released · 2017-04-21
  • 0.0.1
    2016-11-07
  • R
    R 3.3.0 released · 2016-05-03

Package metadata

First published
2016-11-07
Total releases
12 / 10 yrs
License
GPL-3 OSI
Minimum R
≥ 3.6.0
Download size
41 KB
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("nprobust")
Calonico, S., Cattaneo, M. D., & Farrell, M. H. (2026). nprobust: Kernel Density and Local Polynomial Regression Methods (Version 1.0.0) [Computer software]. https://doi.org/10.32614/CRAN.package.nprobust

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 nprobust version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-08-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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