Computes interdaily stability (IS), intradaily variability (IV) & the relative amplitude (RA) from actigraphy data as described in Blume et al. (2016) <doi:10.1016/j.mex.2016.05.006> and van Someren et al. (1999) <doi:10.3109/07420529908998724>. 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.

Author | Christine Blume <christine.blume@sbg.ac.at> Nayantara Santhi <n.santhi@surrey.ac.uk> Manuel Schabus <manuel.schabus@sbg.ac.at> |

Date of publication | 2016-12-23 11:58:45 |

Maintainer | Christine Blume <christine.blume@sbg.ac.at> |

License | GPL-2 |

Version | 0.7 |

https://www.r-project.org |

**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

nparACT

nparACT/NAMESPACE

nparACT/data

nparACT/data/sleepstudy.rda

nparACT/R

nparACT/R/nparACT_ISIVfunctions.R
nparACT/R/nparACT_flex_loop.R
nparACT/R/nparACT_base.R
nparACT/R/nparACT_auxfunctions2.R
nparACT/R/nparACT-internal.R
nparACT/R/nparACT_flex.R
nparACT/R/nparACT_auxfunctions1.R
nparACT/R/nparACT_base_loop.R
nparACT/R/nparACT_RAfunctions.R
nparACT/MD5

nparACT/DESCRIPTION

nparACT/man

nparACT/man/nparACT_auxfunctions1.Rd
nparACT/man/nparACT_flex.Rd
nparACT/man/nparACT_base.Rd
nparACT/man/sleepstudy.Rd
nparACT/man/nparACT_RAfunctions.Rd
nparACT/man/nparACT_flex_loop.Rd
nparACT/man/nparACT_ISIVfunctions.Rd
nparACT/man/nparACT_base_loop.Rd
nparACT/man/nparACT-package.Rd
nparACT/man/nparACT_auxfunctions2.Rd
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