nparACT: Non-Parametric Measures of Actigraphy Data
Version 0.7

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.

Browse man pages Browse package API and functions Browse package files

AuthorChristine Blume <christine.blume@sbg.ac.at> Nayantara Santhi <n.santhi@surrey.ac.uk> Manuel Schabus <manuel.schabus@sbg.ac.at>
Date of publication2016-12-23 11:58:45
MaintainerChristine Blume <christine.blume@sbg.ac.at>
LicenseGPL-2
Version0.7
URL https://www.r-project.org
Package repositoryView on CRAN
InstallationInstall the latest version of this package by entering the following in R:
install.packages("nparACT")

Man pages

nparACT_auxfunctions1: List of Auxiliary Functions
nparACT_auxfunctions2: List of Auxiliary Functions
nparACT_base: Classic Nonparametric Actigraphy Measures for Single...
nparACT_base_loop: Classic Nonparametric Actigraphy Measures for Multiple...
nparACT_flex: Extended Nonparametric Actigraphy Measures for Single...
nparACT_flex_loop: Extended Nonparametric Actigraphy Measures for Multiple...
nparACT_ISIVfunctions: List of Functions Computing IS and IV Values
nparACT-package: Non-Parametric Measures of Actigraphy Data
nparACT_RAfunctions: List of Functions Computing RA, L and M Values and the...
sleepstudy: Actigraphy Data from a Sleep Study

Functions

nparACT Man page
nparACT-package Man page
nparACT_ISIVfunctions Man page
nparACT_RAfunctions Man page
nparACT_auxfunctions1 Man page
nparACT_auxfunctions2 Man page
nparACT_base Man page Source code
nparACT_base_loop Man page Source code
nparACT_flex Man page Source code
nparACT_flex_loop Man page Source code
sleepstudy Man page

Files

NAMESPACE
data
data/sleepstudy.rda
R
R/nparACT_ISIVfunctions.R
R/nparACT_flex_loop.R
R/nparACT_base.R
R/nparACT_auxfunctions2.R
R/nparACT-internal.R
R/nparACT_flex.R
R/nparACT_auxfunctions1.R
R/nparACT_base_loop.R
R/nparACT_RAfunctions.R
MD5
DESCRIPTION
man
man/nparACT_auxfunctions1.Rd
man/nparACT_flex.Rd
man/nparACT_base.Rd
man/sleepstudy.Rd
man/nparACT_RAfunctions.Rd
man/nparACT_flex_loop.Rd
man/nparACT_ISIVfunctions.Rd
man/nparACT_base_loop.Rd
man/nparACT-package.Rd
man/nparACT_auxfunctions2.Rd
nparACT documentation built on May 19, 2017, 11:41 a.m.