Process Data from Wearable Light Loggers and Optical Radiation Dosimeters

---

Documentation for package ‘LightLogR’ version 0.3.8

• DESCRIPTION file.
• Package NEWS.

Help Pages

aggregate_Date	Aggregate dates to a single day
aggregate_Datetime	Aggregate Datetime data
barroso_lighting_metrics	Circadian lighting metrics from Barroso et al. (2014)
bright_dark_period	Brightest or darkest continuous period
Brown2reference	Add Brown et al. (2022) reference illuminance to a dataset
Brown_check	Check whether a value is within the recommended illuminance/MEDI levels by Brown et al. (2022)
Brown_rec	Set the recommended illuminance/MEDI levels by Brown et al. (2022)
centroidLE	Centroid of light exposure
count_difftime	Counts the Time differences (epochs) per group (in a grouped dataset)
create_Timedata	Create a Time-of-Day column in the dataset
cut_Datetime	Create Datetime bins for visualization and calculation
data2reference	Create reference data from other data
Datetime_breaks	Create a (shifted) sequence of Datetimes for axis breaks
Datetime_limits	Find or set sensible limits for Datetime axis
disparity_index	Disparity index
dominant_epoch	Determine the dominant epoch/interval of a dataset
dst_change_handler	Handle jumps in Daylight Savings (DST) that are missing in the data
dst_change_summary	Get a summary of groups where a daylight saving time change occurs.
duration_above_threshold	Duration above/below threshold or within threshold range
exponential_moving_average	Exponential moving average filter (EMA)
filter_Date	Filter Datetimes in a dataset.
filter_Datetime	Filter Datetimes in a dataset.
filter_Datetime_multiple	Filter multiple times based on a list of arguments.
filter_Time	Filter Times in a dataset.
frequency_crossing_threshold	Frequency of crossing light threshold
gapless_Datetimes	Create a gapless sequence of Datetimes
gap_finder	Check for and output gaps in a dataset
gap_handler	Fill implicit gaps in a light logger dataset
gg_day	Create a simple Time-of-Day plot of light logger data, faceted by Date
gg_days	Create a simple datetime plot of light logger data, faceted by group
gg_doubleplot	Double Plots
gg_overview	Plot an overview of dataset intervals with implicit missing data
import	Import a light logger dataset or related data
import_adjustment	Adjust device imports or make your own
import_Dataset	Import a light logger dataset or related data
import_Statechanges	Import data that contain 'Datetimes' of 'Statechanges'
interdaily_stability	Interdaily stability (IS)
interval2state	Adds a state column to a dataset from interval data
intradaily_variability	Intradaily variability (IV)
join_datasets	Join similar Datasets
ll_import_expr	A list of the specific device import functions
midpointCE	Midpoint of cumulative light exposure.
nvRC	Non-visual circadian response
nvRC_circadianBias	Performance metrics for circadian response
nvRC_circadianDisturbance	Performance metrics for circadian response
nvRC_metrics	Performance metrics for circadian response
nvRC_relativeAmplitudeError	Performance metrics for circadian response
nvRD	Non-visual direct response
nvRD_cumulative_response	Cumulative non-visual direct response
period_above_threshold	Length of longest continuous period above/below threshold
pulses_above_threshold	Pulses above threshold
sample.data.environment	Sample of wearable data combined with environmental data
sc2interval	Statechange (sc) Timestamps to Intervals
sleep_int2Brown	Recode Sleep/Wake intervals to Brown state intervals
supported.devices	A vector of all supported devices for import functions
symlog_trans	Scale positive and negative values on a log scale
threshold_for_duration	Find threshold for given duration
timing_above_threshold	Mean/first/last timing above/below threshold.