nparACT (version 0.8)

nparACT_base_loop: Classic Nonparametric Actigraphy Measures for Multiple Actigraphy Files

Description

Function returns IS, IV, RA, L5, M10 as well as L5 and M10 start times for multiple actigraphy files. The function also returns a plot for hourly grand averages across 24 hours.

Usage

nparACT_base_loop(path, SR, cutoff = 1, plot = T, fulldays = T)

Arguments

path

Character string containing path to location of actigraphy files. Actigraphy files must contain a first column with a date/time vector, which must be of form YYYY-MM-DD HH:MM:SS or YYYY/MM/DD HH:MM:SS, i.e. in an unambiguous date format and a second column with actigraphy values. Input files can either be text or comma separated value files.

SR

Sampling rate in Hz.

cutoff

Can be used to define a cutoff for actigraphy data. Default value is 1, i.e. all values are taken into account.

plot

If TRUE a plot is produced. Default is TRUE.

fulldays

If TRUE only data from multiples of 24 hours (i.e. full days) are included while the rest of the data are discarded. Default is TRUE.

Value

Data frame containing IS, IV and RA values for each file. Besides this, L5 and M10 values are given along with the respective start times.

Examples

# NOT RUN {
# example function nparACT_loop
data(sleepstudy)
name <- "sleepstudy_example"
newdir <- file.path(tempdir(),name)
dir.create(newdir, showWarnings = FALSE)
olddir <- setwd(newdir)
write.table(sleepstudy, file = "sleepstudy.txt", row.names=FALSE, col.names = FALSE)
r <- nparACT_base_loop(newdir, SR = 4/60)
setwd(olddir)
# }