agcalibrate: Calibrate acceleration data

In bhelsel/agcounts: Calculate 'ActiGraph' Counts from Accelerometer Data

Calibrate acceleration data

Description

This function uses a C++ implementation of the GGIR 'g.calibrate' function.

Usage

agcalibrate(
  raw,
  verbose = FALSE,
  tz = "UTC",
  imputeTimeGaps = FALSE,
  spherecrit = 0.3,
  sdcriter = 0.013,
  minloadcrit = 168L,
  debug = FALSE,
  ...
)

Arguments

raw	data frame of raw acceleration data obtained from
verbose	Print the progress of the calibration for the raw data, Default: FALSE
tz	the desired timezone, Default: UTC
imputeTimeGaps	Imputes gaps in the raw acceleration data, Default: FALSE
spherecrit	The minimum required acceleration value (in g) on both sides of 0 g for each axis. Used to judge whether the sphere is sufficiently populated
sdcriter	Criteria to define non-wear time, defined as the estimated noise measured in the raw accelerometer data.
minloadcrit	The minimum number of hours the code needs to read for the autocalibration procedure to be effective (only sensitive to multitudes of 12 hrs, other values will be ceiled)
debug	print out diagnostic information for C++ code
...	Additional arguments to pass into the agread function

Details

This function uses a C++ implementation of the GGIR 'g.calibrate' function to return calibrated raw acceleration data.

Value

Returns the calibrated raw acceleration data

See Also

force_tz

Examples

   path <- system.file("extdata/example.gt3x", package = "agcounts")
   data <- read.gt3x::read.gt3x(path, asDataFrame = TRUE)
   data <- agcalibrate(raw = data)

bhelsel/agcounts documentation built on June 14, 2024, 12:41 a.m.