aggAccFile {pawacc} | R Documentation |
Aggregate Accelerometry Data
Description
This function aggregates count values
Usage
aggAccFile(object, by, which = "counts",
x = NULL, keep.error = FALSE)
Arguments
object |
an object of class |
by |
epoch by which count and steps are aggregated. Note: it cannot be less that the accelerometer epoch ( |
which |
either 'counts' or 'steps' for |
x |
optional argument. If |
keep.error |
logical flag. Should errors be omitted? |
Value
outcome |
aggregated values |
ts_agg |
time stamping |
Author(s)
Marco Geraci
References
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
See Also
Examples
data(gt1m_sample)
# aggregate by 30-second epochs
aggAccFile(gt1m_sample, by = 30)
# aggregate by 5-minute epochs
aggAccFile(gt1m_sample, by = 300, keep.error = FALSE)
[Package pawacc version 1.2.3 Index]