PhysActBedRest: Marks Periods of 'Bedrest' in Actigraph Accelerometer Data

Contains a function to categorize accelerometer readings collected in free-living (e.g., for 24 hours/day for 7 days), preprocessed and compressed as counts (unit-less value) in a specified time period termed epoch (e.g., 1 minute) as either bedrest (sleep) or active. The input is a matrix with a timestamp column and a column with number of counts per epoch. The output is the same dataframe with an additional column termed bedrest. In the bedrest column each line (epoch) contains a function-generated classification 'br' or 'a' denoting bedrest/sleep and activity, respectively. The package is designed to be used after wear/nonwear marking function in the 'PhysicalActivity' package. Version 1.1 adds preschool thresholds and corrects for possible errors in algorithm implementation.

Version: 1.1
Depends: R (≥ 3.5.0), chron, stringr
Imports: lubridate
Published: 2020-09-14
DOI: 10.32614/CRAN.package.PhysActBedRest
Author: J. Dustin Tracy, Zhiyi Xu, Sari Acra, Kong Y. Chen, Maciej S. Buchowski, Thomas Donnelly
Maintainer: J. Dustin Tracy <tracy at>
License: GPL (≥ 3)
NeedsCompilation: no
CRAN checks: PhysActBedRest results


Reference manual: PhysActBedRest.pdf


Package source: PhysActBedRest_1.1.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): PhysActBedRest_1.1.tgz, r-oldrel (arm64): PhysActBedRest_1.1.tgz, r-release (x86_64): PhysActBedRest_1.1.tgz, r-oldrel (x86_64): PhysActBedRest_1.1.tgz
Old sources: PhysActBedRest archive


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