Lansing Woods Trees
This is the Lansing Woods Tree data set and an arbitrary polygon boundary within unit square.
The Lansing Woods tree data set and the arbitrary polygon are provided
here for the demonstration of the basic usage of this package. See Section
lansing is an R
x, y, marks
polyb is an R matrix with
Gerrard, D.J. (1969) Competition quotient: a new measure of the competition affecting individual forest trees. Research Bulletin 20, Agricultural Experiment Station, Michigan State University.