Amelia

1.8.3

A Program for Missing Data

25packages depend

152.7Kdownloads / year

22.7%test coverage

13/13checks pass

Overview

About

Maintained by Matthew BlackwellFirst published 2007-03-2532 releasesCRAN page ↗

A tool that "multiply imputes" missing data in a single cross-section (such as a survey), from a time series (like variables collected for each year in a country), or from a time-series-cross-sectional data set (such as collected by years for each of several countries). Amelia II implements our bootstrapping-based algorithm that gives essentially the same answers as the standard IP or EMis approaches, is usually considerably faster than existing approaches and can handle many more variables. Unlike Amelia I and other statistically rigorous imputation software, it virtually never crashes (but please let us know if you find to the contrary!). The program also generalizes existing approaches by allowing for trends in time series across observations within a cross-sectional unit, as well as priors that allow experts to incorporate beliefs they have about the values of missing cells in their data. Amelia II also includes useful diagnostics of the fit of multiple imputation models. The program works from the R command line or via a graphical user interface that does not require users to know R.

Install

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

install.packages("Amelia", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-amelia

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-Amelia

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-Amelia

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

Health

CRAN checks

13OK

Slowest check: 3.1 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.01

22.7%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 173 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 33% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 57%
References docs: 19%

Downloads

152.7K

CRAN downloads in the past year

Rank #1,186 · ~418/day · ~12.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

9K30 days

31.9K90 days

152.7K1 year

Compare downloads with other packages →

Also on4.8K r2u40 autocran4K conda_forge89 c2d4u

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Depends (2)

R >= 3.0.2Rcpp

Imports (7)

foreignutilsgrDevicesgraphicsmethodsstatsrlang

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (4)

tcltkbroom rmarkdown knitr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

25direct

2indirect

Code & Tests

Code Composition

R 7,545 (70%)Rd 1,355 (13%)Vignettes 1,065 (10%)C++ 545 (5%)Other 179 (2%)C 46 (0%)

Code characteristics

Object systems

S311

Cyclomatic complexity: 3.0 median / 168 max

Test coverage

Line coverage

23%

Expression

23.2%

Tests / Examples

22.7% / 25% ex

Functions

112 16 exported

Complexity

8 avg / 168 max

Call network

112 nodes / 203 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

112 functions

Function	Cyclo	Coverage
AmeliaView exp	8	0%
compare.density exp	23	0%
disperse exp	22	0%
mi.combine exp	4	0%
mi.meld exp	4	0%
missmap exp	29	0%

Datasets

Bundled datasets · 2

Name	Class	Rows × Cols	Also ships in
africa	data.frame	120 × 7	–
freetrade	data.frame	171 × 10	–

People & History

People (3)

Maintainer (1)

Matthew Blackwell

Author, Maintainer

Authors (3)

Matthew Blackwell

Author, Maintainer

James Honaker

Author

Gary King

Author

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.8.3Latest
2024-11-08 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
1.8.2
2024-04-23 · diff ↗
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R 4.3.0 released · 2023-04-21
1.8.1
2022-11-19 · diff ↗
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R 4.2.0 released · 2022-04-22
1.8.0
2021-05-26 · diff ↗
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R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.7.6
2019-11-25 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.7.5
2018-05-08 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21

Show 42 earlier events

R
R 3.3.0 released · 2016-05-03
1.7.4
2015-12-06 · diff ↗
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R 3.2.0 released · 2015-04-16
1.7.3
2014-11-15 · diff ↗
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R 3.1.0 released · 2014-04-10
1.7.2
2013-06-08 · diff ↗
1.7.1
2013-04-03 · diff ↗
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R 3.0.0 released · 2013-04-03
1.7
2013-02-13 · diff ↗
1.6.4
2012-12-18 · diff ↗
1.6.3
2012-06-22 · diff ↗
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R 2.15.0 released · 2012-03-30
1.6.1
2012-03-29 · diff ↗
1.5-5
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R 2.14.0 released · 2011-10-31
1.5-4
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R 2.13.0 released · 2011-04-13
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R 2.12.0 released · 2010-10-15
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R 2.11.0 released · 2010-04-22
1.2-16
2010-03-25 · diff ↗
1.2-15
2010-02-21 · diff ↗
1.2-14
2009-11-17 · diff ↗
R
R 2.10.0 released · 2009-10-26
1.2-13
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1.2-12
2009-07-18 · diff ↗
1.2-9
2009-07-02 · diff ↗
1.2-2
2009-04-27 · diff ↗
R
R 2.9.0 released · 2009-04-17
1.2-1
2009-04-15 · diff ↗
1.2-0
2009-04-14 · diff ↗
R
R 2.8.0 released · 2008-10-20
1.1-33
2008-07-28 · diff ↗
1.1-32
2008-07-18 · diff ↗
1.1-30
2008-06-09 · diff ↗
1.1-29
2008-05-30 · diff ↗
R
R 2.7.0 released · 2008-04-22
R
R 2.6.0 released · 2007-10-03
R
R 2.5.0 released · 2007-04-24
1.1-23
2007-03-25
R
R 2.4.0 released · 2006-10-03

Package metadata

First published: 2007-03-25
Total releases: 32 / 19 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.0.2
Bundled data: 5.4 KB / 2 files
Download size: 1.5 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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