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nparACT  

Non-Parametric Measures of Actigraphy Data
View on CRAN: Click here


Download and install nparACT package within the R console
Install from CRAN:
install.packages("nparACT")

Install from Github:
library("remotes")
install_github("cran/nparACT")

Install by package version:
library("remotes")
install_version("nparACT", "0.8")



Attach the package and use:
library("nparACT")
Maintained by
Christine Blume
[Scholar Profile | Author Map]
First Published: 2015-10-22
Latest Update: 2017-12-20
Description:
Computes interdaily stability (IS), intradaily variability (IV) & the relative amplitude (RA) from actigraphy data as described in Blume et al. (2016) and van Someren et al. (1999) . Additionally, it also computes L5 (i.e. the 5 hours with lowest average actigraphy amplitude) and M10 (the 10 hours with highest average amplitude) as well as the respective start times. The flex versions will also compute the L-value for a user-defined number of minutes. IS describes the strength of coupling of a rhythm to supposedly stable zeitgebers. It varies between 0 (Gaussian Noise) and 1 for perfect IS. IV describes the fragmentation of a rhythm, i.e. the frequency and extent of transitions between rest and activity. It is near 0 for a perfect sine wave, about 2 for Gaussian noise and may be even higher when a definite ultradian period of about 2 hrs is present. RA is the relative amplitude of a rhythm. Note that to obtain reliable results, actigraphy data should cover a reasonable number of days.
How to cite:
Christine Blume (2015). nparACT: Non-Parametric Measures of Actigraphy Data. R package version 0.8, https://cran.r-project.org/web/packages/nparACT. Accessed 07 May. 2025.
Previous versions and publish date:
0.1 (2015-10-22 14:16), 0.2 (2016-01-11 14:06), 0.3 (2016-01-25 14:54), 0.4 (2016-04-12 12:15), 0.5 (2016-06-06 17:56), 0.6 (2016-07-01 01:14), 0.7 (2016-12-23 11:58)
Other packages that cited nparACT R package
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Complete documentation for nparACT
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