cosinor_IS_IV_Analyses

Applies cosinor anlaysis from the ActCR package to the time series, as well
 as IV, IS and phi estimates.

internal

A tool to process and analyse data collected with wearable raw acceleration sensors as described in Migueles and colleagues (JMPB 2019), and van Hees and colleagues (JApplPhysiol 2014; PLoSONE 2015). The package has been developed and tested for binary data from 'GENEActiv' <https://activinsights.com/>, binary (.gt3x) and .csv-export data from 'Actigraph' <https://theactigraph.com> devices, and binary (.cwa) and .csv-export data from 'Axivity' <https://axivity.com>. These devices are currently widely used in research on human daily physical activity. Further, the package can handle accelerometer data file from any other sensor brand providing that the data is stored in csv format. Also the package allows for external function embedding.

Vincent T van Hees

GGIR

Raw Accelerometer Data Analysis

Jairo H Migueles

Severine Sabia

Matthew R Patterson

Zhou Fang

Joe Heywood

Joan Capdevila Pujol

Lena Kushleyeva

Mathilde Chen

Manasa Yerramalla

Patrick Bos

Taren Sanders

Chenxuan Zhao

Ian Meneghel Danilevicz

Victor Barreto Mesquita

Gaia Segantin

Medical Research Council UK 

Accelting 

French National Research Agency 

cosinor_IS_IV_Analyses function

<dl> <dt>Xi</dt>
<dd>Vector with time series of movement indicators if the maximum &lt; 8 and mean &lt; 1
 then input is assumed to be in g-units and is multiplied by 1000.</dd> <dt>epochsize</dt>
<dd>Numeric epochsize in seconds</dd> <dt>timeOffsetHours</dt>
<dd>Numeric time in hours relative to next midnight</dd> <dt>threshold</dt>
<dd>Numeric value to use as threshold to distinguish inactivity from active behaviour
 for the IV and IS analysis. GGIR uses parameter threshold.lig to set this threshold.</dd></dl>

Arguments

Vincent T van Hees &lt;v.vanhees@accelting.com&gt;

Author

Apply cosinor anlaysis and extended cosinor analysis — cosinor_IS_IV_Analyses

<dl>

 <dt>Xi</dt>
<dd>Vector with time series of movement indicators if the maximum &lt; 8 and mean &lt; 1
 then input is assumed to be in g-units and is multiplied by 1000.</dd>

 <dt>epochsize</dt>
<dd>Numeric epochsize in seconds</dd>

 <dt>timeOffsetHours</dt>
<dd>Numeric time in hours relative to next midnight</dd>

 <dt>threshold</dt>
<dd>Numeric value to use as threshold to distinguish inactivity from active behaviour
 for the IV and IS analysis. GGIR uses parameter threshold.lig to set this threshold.</dd>

</dl>

Apply cosinor anlaysis and extended cosinor analysis

cosinor_IS_IV_Analyses: Apply cosinor anlaysis and extended cosinor analysis

Description

Usage

Arguments

Author