Raw Accelerometer Data Analysis

---

Documentation for package ‘GGIR’ version 2.10-1

• DESCRIPTION file.
• User guides, package vignettes and other documentation.
• Package NEWS.

Help Pages

GGIR-package	A package to process multi-day raw accelerometer data
create_test_acc_csv	Creates csv data file for testing purposes
create_test_sleeplog_csv	Creates csv sleeplog file for testing purposes
data.calibrate	Example output from g.calibrate
data.getmeta	Example output from g.getmeta
data.inspectfile	Example output from g.inspectfile
g.calibrate	function to estimate calibration error and make recommendation for addressing it
g.getbout	function to calculate bouts from vector of binary classes
g.getmeta	Function to extract meta-data (features) from data in accelerometer file
g.imputeTimegaps	Impute gaps in three axis raw accelerometer data
g.inspectfile	function to inspect accelerometer file for brand, sample frequency and header
g.loadlog	Load and clean sleeplog information
g.part1	function to load and pre-process acceleration files
g.part2	function to analyse and summarize pre-processed output from g.part1
g.part3	Detection of sustained inactivity periods as needed for sleep detection in g.part4.
g.part4	Labels detected sustained inactivity periods by g.part3 as either part of the Sleep Period Time window or not
g.part5	Merge output from physical activity and sleep analysis into one report
g.plot5	Generate user-friendly visual report. The first part of the report summarizes important daily metrics in bar plot format. The second part of the report shows the raw data and annotations in 24-hr periods. Angle-z is shown with sleep annotations during the SPT (sleep period time) window. ENMO is shown with daytime inactivity and PA (physical activity) annotations in the lower section of each 24-hr plot. The PA annotations are based on a 10 minute bout metric and 80 of a 10 minute bout of MVPA. Vigorous PA is a short window of time above threshold.vig that is part of a bout of MVPA. Light PA is a short window of time above threshold.lig that is part of a bout of light PA.
g.report.part2	Generate report from milestone data produced by g.part2
g.report.part4	Generate report from milestone data produced by g.part4
g.report.part5	Generate report from milestone data produced by g.part5
g.shell.GGIR	Wrapper function around function GGIR
GGIR	Shell function for analysing an accelerometer dataset.
is.ISO8601	Check whether character timestamp is in iso8601 format.
iso8601chartime2POSIX	Convert iso8601 timestamps to POSIX timestamp
load_params	Load default parameters
POSIXtime2iso8601	Convert POSIX to iso8601 timestamp
read.myacc.csv	Read custom csv files with accelerometer data