trees {SMIR} | R Documentation |
The volume of usable
wood v
in cubic feet (1 foot = 30.48 cm) is given for each of
a sample of 31 black cherry trees, and the height h
in feet and
the diameter d
in inches (1 inch = 2.54 cm) at a height 4.5 feet
above the ground.
data(trees)
A data.frame of 31 obs. of 3 variables:
[,] | d | numeric, diameter in inches |
[,] | h | integer, height in feet |
[,] | v | numeric volume of usable wood, |
See pp.126 and 191 in SMIR
Ryan, T. and Joiner, B. and Ryan, B., (1976). Minitab Students Handbook, Duxbury Press, North Scituate, Mass