Data from the Boundary Waters Canoe Area Wilderness Blowdown. The data frame blowdown
includes nine species of trees,
blowAPB gives data for aspen and
paper birch, while
blowBF gives data for Balsam Fir only.
Arguments
source
Roy Rich
References
S. Weisberg (2005). Applied Linear Regression, third edition. New York: Wiley.