paran: Horn's Test of Principal Components/Factors

An implementation of Horn's technique for numerically and graphically evaluating the components or factors retained in a principle components analysis (PCA) or common factor analysis (FA). Horn's method contrasts eigenvalues produced through a PCA or FA on a number of random data sets of uncorrelated variables with the same number of variables and observations as the experimental or observational data set to produce eigenvalues for components or factors that are adjusted for the sample error-induced inflation. Components with adjusted eigenvalues greater than one are retained. paran may also be used to conduct parallel analysis following Glorfeld's (1995) suggestions to reduce the likelihood of over-retention.

Version:	1.5.5
Depends:	R (≥ 1.8.0), MASS
Imports:	rlang
Published:	2026-02-13
DOI:	10.32614/CRAN.package.paran
Author:	Alexis Dinno [aut, cre, cph]
Maintainer:	Alexis Dinno <alexis.dinno at pdx.edu>
License:	GPL-2
URL:	https://alexisdinno.com/Software/index.shtml#paran, https://alexisdinno.com/Software/files/PA_for_PCA_vs_FA.pdf
NeedsCompilation:	no
In views:	Psychometrics
CRAN checks:	paran results

Documentation:

Reference manual:

paran.html , paran.pdf

Downloads:

Package source:	paran_1.5.5.tar.gz
Windows binaries:	r-devel: paran_1.5.5.zip, r-release: paran_1.5.5.zip, r-oldrel: paran_1.5.5.zip
macOS binaries:	r-release (arm64): paran_1.5.5.tgz, r-oldrel (arm64): paran_1.5.5.tgz, r-release (x86_64): paran_1.5.5.tgz, r-oldrel (x86_64): paran_1.5.5.tgz
Old sources:	paran archive

Reverse dependencies:

Reverse imports:	funspace, umx
Reverse suggests:	alsi, seminrExtras

Linking:

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