Chest-beating rates in Gorillas.
data(Gorillas)
A data frame with 25 rows (one per gorilla) and 7 columns:
An identifier
The number of chest beats
The focal time in hours (i.e., time spent watching gorilla)
The rate of chest beating, in beats per 10 hours
The breadth of the gorilla's back, in cm
Mean age during the study period, in years
Whether the gorillas is aged under 20 or not;
one of Younger
or Older