EFAfactors

1.2.4

Determining the Number of Factors in Exploratory Factor Analysis

1packages depend

3.3Kdownloads / year

38.5%test coverage

13/13checks pass

Overview

About

Maintained by Haijiang QinFirst published 2024-09-258 releasesCRAN page ↗

Provides a collection of standard factor retention methods in Exploratory Factor Analysis (EFA), making it easier to determine the number of factors. Traditional methods such as the scree plot by Cattell (1966) doi:10.1207/s15327906mbr0102_10, Kaiser-Guttman Criterion (KGC) by Guttman (1954) doi:10.1007/BF02289162 and Kaiser (1960) doi:10.1177/001316446002000116, and flexible Parallel Analysis (PA) by Horn (1965) doi:10.1007/BF02289447 based on eigenvalues form PCA or EFA are readily available. This package also implements several newer methods, such as the Empirical Kaiser Criterion (EKC) by Braeken and van Assen (2017) doi:10.1037/met0000074, Comparison Data (CD) by Ruscio and Roche (2012) doi:10.1037/a0025697, and Hull method by Lorenzo-Seva et al. (2011) doi:10.1080/00273171.2011.564527, as well as some AI-based methods like Comparison Data Forest (CDF) by Goretzko and Ruscio (2024) doi:10.3758/s13428-023-02122-4 and Factor Forest (FF) by Goretzko and Buhner (2020) doi:10.1037/met0000262. Additionally, it includes a deep neural network (DNN) trained on large-scale datasets that can efficiently and reliably determine the number of factors.

Install

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

install.packages("EFAfactors", 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-efafactors

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-EFAfactors

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-EFAfactors

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

Health

CRAN checks

13OK

Slowest check: 5.2 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.09

38.5%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
12 OK · 1 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Show 1 earlier snapshots

NOTE2026-03-10
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 44%

Downloads

3.3K

CRAN downloads in the past year

Rank #11,463 · ~9/day · ~274/mo

Releases R versions

Daily download trend is not available in this view yet.

29930 days

93190 days

3.3K1 year

Compare downloads with other packages →

Also on429 r2u34 autocran

Dependencies

Declared dependencies

15 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.3.0

Imports (15)

BBmisc checkmate ddpcr ineqMASSMatrixmlr proxy psych ranger reticulate Rcpp RcppArmadillo SimCorMultRes xgboost

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

LSTMfactors

Code & Tests

Code Composition

R 4,765 (60%)Rd 2,788 (35%)C++ 343 (4%)

Code characteristics

Object systems

S330

Cyclomatic complexity: 1.0 median / 39 max

Test coverage

Line coverage

Expression

0.2%

Tests / Examples

0.4% / 8% ex

Functions

116 26 exported

Complexity

3.3 avg / 39 max

Call network

116 nodes / 70 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

116 functions

Function	Cyclo	Coverage
CD exp	8	0%
CDF exp	7	0%
EFAhclust exp	10	0%
EFAindex exp	2	0%
EFAkmeans exp	3	0%
EFAscreet exp	4	0%

Datasets

Bundled datasets · 2

Name	Class	Rows × Cols	Also ships in
data.DAPCS	data.frame	987 × 22	in 2 packages
data.bfi	data.frame	2,800 × 28	in 4 packages

People & History

People (2)

Maintainer (1)

Haijiang Qin

Author, Maintainer, Copyright holder

Authors (2)

Haijiang Qin

Author, Maintainer, Copyright holder

Lei Guo

Author, Copyright holder

Haijiang Qin

Author, Maintainer, Copyright holder

Lei Guo

Author, Copyright holder

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.2.4Latest
2025-10-14 · current release · diff ↗
1.2.3
2025-06-14 · diff ↗
1.2.2
2025-05-01 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.2.1
2025-02-17 · diff ↗
1.2.0
2025-01-07 · diff ↗
1.1.1
2024-11-19 · diff ↗
1.1.0
2024-09-30 · diff ↗
1.0.0
2024-09-25
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2024-09-25
Total releases: 8 / 2 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.3.0
Bundled data: 1.0 MB / 8 files
Download size: 1.4 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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