Computes the diurnality index based on an activity dataframe

Usage

diurnality(
  data,
  activity,
  day_time = c("06:30:00", "16:30:00"),
  night_time = c("18:00:00", "T05:00:00"),
  save = NULL
)

Arguments

data: a digiRhythm-friendly dataset
activity: The number of non-useful lines to skip (lines to header)
day_time: an array containing the start and end of the day period. Default: c("06:30:00", "16:30:00").
night_time: an array containing the start and end of the night period. Default: c("18:00:00", "T05:00:00").
save: if NULL, the image is not saved. Otherwise, this parameter will be the name of the saved image. it should contain the path and name without the extension.

Value

A ggplot2 object that contains the diurnality plot in addition to a dataframe with 2 col: date and diurnality index

Examples

data("df516b_2", package = "digiRhythm")
data <- df516b_2
data <- remove_activity_outliers(data)
activity <- names(data)[2]
d_index <- diurnality(data, activity)