ActFrag: Activity Fragmentation Metrics Extracted from Minute Level Activity Data

Recent studies haven shown that, on top of total daily active/sedentary volumes, the time accumulation strategies provide more sensitive information. This package provides functions to extract commonly used fragmentation metrics to quantify such time accumulation strategies based on minute level actigraphy-measured activity counts data.

Version:	0.1.2
Depends:	R (≥ 4.4.0)
Imports:	accelerometry, dplyr, ineq, survival, stats
Suggests:	knitr, rmarkdown, testthat (≥ 2.1.0)
Published:	2026-01-18
DOI:	10.32614/CRAN.package.ActFrag
Author:	Junrui Di [aut, cre], John Muschelli [aut], Vadim zipunnikov [aut]
Maintainer:	Junrui Di <dijunrui at gmail.com>
BugReports:	https://github.com/junruidi/ActFrag/issues
License:	GPL-3
URL:	https://github.com/junruidi/ActFrag
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	ActFrag results

Documentation:

Reference manual:	ActFrag.html , ActFrag.pdf
Vignettes:	Activity Fragmentation (source, R code)

Downloads:

Package source:	ActFrag_0.1.2.tar.gz
Windows binaries:	r-devel: ActFrag_0.1.2.zip, r-release: ActFrag_0.1.2.zip, r-oldrel: ActFrag_0.1.2.zip
macOS binaries:	r-release (arm64): ActFrag_0.1.2.tgz, r-oldrel (arm64): ActFrag_0.1.2.tgz, r-release (x86_64): ActFrag_0.1.2.tgz, r-oldrel (x86_64): ActFrag_0.1.2.tgz
Old sources:	ActFrag archive

Reverse dependencies:

Reverse imports:

mMARCH.AC, postGGIR

Linking:

Please use the canonical form https://CRAN.R-project.org/package=ActFrag to link to this page.