data {spatialkernel} | R Documentation |
This is the Lansing Woods Tree data set and an arbitrary polygon boundary within unit square.
data(lansing) data(polyb)
lansing
is an R data.frame
with x, y, marks
and polyb
is an R matrix with x, y
.
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 Examples in
spatialkernel-package
.
Lansing Woods trees from Lansing Woods, Clinton County, Michigan USA, including hickories, maples, and oaks.
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.