DACF: Data Analysis with Ceiling and/or Floor Data

An implementation of data analytic methods in R for analyses for data with ceiling/floor effects. The package currently includes functions for mean/variance estimation and mean comparison tests. Implemented methods are from Aitkin (1964) <doi:10.1007/BF02289723> and Liu & Wang (2021) <doi:10.3758/s13428-020-01407-2>.

Version:	1.1.0
Depends:	R (≥ 3.5)
Imports:	mvtnorm, qgraph, Matrix, psych, utils
Suggests:	knitr, rmarkdown, MASS, ggplot2
Published:	2026-07-16
DOI:	10.32614/CRAN.package.DACF
Author:	Qimin Liu [aut, cre], Lijuan Wang [aut], Lauren Trichtinger [aut], Grace Murray [ctb]
Maintainer:	Qimin Liu <Qliuacademia at gmail.com>
License:	GPL-2
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	DACF results

Documentation:

Reference manual:	DACF.html , DACF.pdf
Vignettes:	Data Analyses with Ceiling/Floor data (source, R code)

Downloads:

Package source:	DACF_1.1.0.tar.gz
Windows binaries:	r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available
Old sources:	DACF archive

Linking:

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