gt3xAccFile | R Documentation |
This function reads Actigraph GT3X and ActiSleep accelerometer files.
gt3xAccFile(file, path, fileid, tz = "Europe/London",
sparse = FALSE, fault = 32767)
file |
file name including file extension. |
path |
path to |
fileid |
label for file identifier. |
tz |
a character string specifying the timezone to be used for the conversion (see |
sparse |
logical flag: should data be stored in sparse format? |
fault |
numerical value that indicates voltage signal saturation. |
Raw accelerometer data are processed according to the device data format. See file 'gt3x_sample.dat' in directory '\inst\extdata' of this package.
These functions return an object of two class
es: accfile
and additional device-specific class (i.e., gt3x
).
An object of class accfile
is a list containing the following components:
df |
A |
info |
A |
error_summary |
A |
Marco Geraci
Actigraph (Pensacola, Florida).
Geraci M, Rich C, Sera F, Cortina-Borja M, Griffiths LJ, and Dezateux C (2012). Technical report on accelerometry data processing in the Millennium Cohort Study. London, UK: University College London. Available at https://discovery.ucl.ac.uk/1361699
readAccDir
data(gt3x_sample)
class(gt3x_sample)
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