Description

Data on 31 black cherry trees sampled from the Allegheny Natinoal Forest, Pennsylvania.

Usage

Format

This data frame contains the following columns:

D

diameter 4.5 feet of the ground, inches

H

height of the tree, feet

V

marketable volume of wood, cubic feet

Source

Ryan, T.A., Joiner, B.L. and Ryan, B.F. (1976) Minitab Student Handbook. N. Scituate, MA: Duxbury.

References

Cook, R.D. and Weisberg, S. (1982) Residuals and Influence in Regression, New York: Chapman and Hall, p. 66.