Package: PhysActBedRest
Type: Package
Title: Marks Periods of 'Bedrest' in Actigraph Accelerometer Data
Version: 1.1
Date: 2020-9-4
Author: J. Dustin Tracy, Zhiyi Xu, Sari Acra, Kong Y. Chen, Maciej S. Buchowski, Thomas Donnelly
Maintainer: J. Dustin Tracy <tracy@chapman.edu>
Depends: R (>= 3.5.0), chron, stringr
Imports: lubridate
Description: 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.    
License: GPL (>= 3)
NeedsCompilation: no
Packaged: 2020-09-04 17:33:40 UTC; tracy
Repository: CRAN
Date/Publication: 2020-09-14 21:20:09 UTC
Built: R 4.6.0; ; 2026-04-26 04:30:13 UTC; unix
