g.getM5L5: Extract M5 and L5 from time series

In GGIR: Raw Accelerometer Data Analysis

Extract M5 and L5 from time series

Description

Extract M5 and L5 from time series, function used by g.analyse and not intended for direct use by package user. Please see g.analyse for further clarification on functionalities

Usage

  g.getM5L5(varnum, epochSize, t0_LFMF, t1_LFMF, M5L5res, winhr, qM5L5 = c(), 
            iglevels = c(), MX.ig.min.dur = 10)	

Arguments

varnum	Numeric vector of epoch values
epochSize	Small epoch size in seconds
t0_LFMF	Start hour of the day for the M5L5 analyses, e.g. 0 for midnight
t1_LFMF	End hour of the day for the M5L5 analyses, e.g. 24 for midnight
M5L5res	Resolution of hte M5L5 analyses in minutes
winhr	windowsize of M5L5 analyses, e.g. 5 hours
qM5L5	Percentiles (quantiles) to be calculated over L5 and M5 window.
iglevels	See g.analyse. If provided then the intensity gradient will be calculated for all MX windows larger or equal than argument MX.ig.min.dur
MX.ig.min.dur	Minimum MX duration needed in order for intensity gradient to be calculated

Value

• DAYL5HOUR = Starting time in hours of L5

• DAYL5VALUE = average acceleration during L5

• DAYM5HOUR = Starting time in hours of M5

• DAYM5VALUE = average acceleration during M5

• V5NIGHT = average acceleration between 1am and 6am

Author(s)

Vincent T van Hees <[e-mail]>

Examples

  ## Not run: 
    data(data.getmeta)
    g.getM5L5(varnum=data.getmeta,ws3=5,t0_LFMF=0,t1_LFMF=24,M5L5res=10,winhr=5)
  
## End(Not run)

GGIR documentation built on April 3, 2025, 6 p.m.