process.acc: Processing of accelerometer data files

In dprocter/modeid: modeid: Identification of travel modes from GPS and accelerometry data

Description

Returns a data.frame with Accelerometer data summarised to a defined epoch

Usage

process.acc(accfile, participant.id, cutoff.method, epoch.length, acc.model,
  raw = FALSE, samples.per.second = 30, nonwear = TRUE)

Arguments

accfile	The accelerometer file to merge, a .csv
participant.id	A unique identifier for the participant
cutoff.method	1,2 or 3 1=no cutoff, keep all data 2=take 7 days from the first point 3=if there are over 8 days, trim the first then take 7 days, if there are 8 days, trim the first and keep the rest, if there are 7 or less days, keep them all
epoch.length	epoch.length in seconds, currently, 5, 10 or 15 seconds only tested 1= need to account for BST, 0= do not
acc.model	The accelerometer model. Currently "Actigraph" and "Actiheart" are valid
raw	Boolean, if TRUE you are using raw data, not counts, must be exported as .csv, not the .gt3x, or .agd files
samples.per.second	The sampling rate of raw data if used, default is 30Hz, adjust if required

Details

Currently only works for Actigraph or Actiheart accelerometer files, If you need other types contect the author , they can be included

dprocter/modeid documentation built on May 19, 2019, 8:21 a.m.