Heart rates for a sample of six tree shrews at each of three stages of sleep.
A data frame with 18 observations on the following 5 variables.
Row ID
Shrew ID (A through F)
Phase of sleep (DSW=deep wave, LSW=light wave, or REM=dreaming)
Heart rate (beats per minute)
Source
Berger, R. J. and Walker, J. M. (1972) "The Polygraphic Study of Sleep in the Tree Shrew," Brain, Behavior, and Evolution, v. 5, pp. 62
Use the following R code to directly access this dataset in R.