Calculate Sleep Regularity Index (SRI) - Exported Version

Usage

sleep.regularity.index(sleep_state, timestamps, epoch_length = 60)

Arguments

sleep_state: Character vector of sleep states ("S" or "W")
timestamps: POSIXct timestamps (must be regular epochs)
epoch_length: Epoch length in seconds (default 60)

Value

Numeric SRI value (-100 to 100)

References

Phillips AJK, Clerx WM, O'Brien CS, Sano A, Barger LK, Picard RW, Lockley SW, Klerman EB, Czeisler CA (2017). “Irregular sleep/wake patterns are associated with poorer academic performance and delayed circadian and sleep/wake timing.” Scientific Reports, 7(1), 3216. doi:10.1038/s41598-017-03171-4 .