g.weardec {GGIR} | R Documentation |
Detects whether accelerometer is worn
Description
Uses the object produced by g.part1 to assess whether the accelerometer was worn
Usage
g.weardec(M, wearthreshold, ws2, nonWearEdgeCorrection = TRUE)
Arguments
M |
Object produced by g.getmeta |
wearthreshold |
Number of axis that at least need to meet the non-wear criteria |
ws2 |
Large windowsize used in seconds to apply non-wear detection Small window size not needed, because this is inherent to the object M |
nonWearEdgeCorrection |
Boolean to indicated whether the EdgeCorrection as described in 2013 should be applied (default = TRUE, which is consistent with how code has been) |
Value
-
r1
Participant id extracted from file -
r2
Night number -
r3
Detected onset of sleep expressed as hours since the previous midnight -
LC
fraction of 15 minute windows with more than 5 percent clipping -
LC2
fraction of 15 minute windows with more than 80 percent clipping
Author(s)
Vincent T van Hees <v.vanhees@accelting.com>
Examples
data(data.getmeta)
output = g.weardec(M = data.getmeta, wearthreshold = 2, ws2 = 900)