Accessory function for collapsing accelerometer files.
fun.collapse(x, fun = list(mean = function(x) mean(x, na.rm = TRUE),
median = function(x) median(x, na.rm = TRUE),
sd = function(x) sd(x, na.rm = TRUE)))a list of named values of the same length as fun.
numeric vector.
named list of functions to be applied to x.
Marco Geraci
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
collapse.accfile