g.metric: Extract metrics from acceleration signals

In PeteJWatson/ggircal: Raw Accelerometer Data Analysis

Description

Function to extract metrics from acceleration signal. Not intended for direct use by package user

Usage

  g.metric(Gx,Gy,Gz,n=c(),sf,ii,TW=c(),lb=c(),hb=c(),gravity = 1)

Arguments

Gx	y acceleration signal
Gy	y acceleration signal
Gz	z acceleration signal
n	filter order, only needed if a metric is selected that involves a frequency filter
sf	sample frequency
ii	Integer to indicate which metric should be derived
TW	Time window size in samples used if the metric involves a time window
lb	Cut-off frequency corresponding to the lower boundary of frequency filter
hb	Cut-off frequency corresponding to the higher boundary of frequency filter
gravity	Size of gravity, default = 1

Value

Vector of metric values at the same time resolution as the input data

Author(s)

Vincent T van Hees <[e-mail]>

Examples

  Gx = runif(n=10000,min=0,max=2)
  Gy = runif(n=10000,min=1,max=3)
  Gz = runif(n=10000,min=0,max=2)
  EuclideanNorm = g.metric(Gx,Gy,Gz,sf=40,ii=3,gravity = 1)	

PeteJWatson/ggircal documentation built on Nov. 24, 2021, 11:14 a.m.