Lansing Woods Point Pattern
Locations and botanical classification of trees in Lansing Woods.
The data come from an investigation of a 924 ft x 924 ft (19.6 acre)
plot in Lansing Woods, Clinton County, Michigan USA
by D.J. Gerrard. The data give the locations of 2251 trees and
their botanical classification (into hickories, maples, red oaks,
white oaks, black oaks and miscellaneous trees).
The original plot size (924 x 924 feet)
has been rescaled to the unit square.
Note that the data contain duplicated points (two points at the
same location). To determine which points are duplicates,
To remove the duplication, use
An object of class
representing the point pattern of tree locations.
x Cartesian $x$-coordinate of tree
y Cartesian $y$-coordinate of tree
marks factor with levels indicating species of
The levels of
ppp.object for details of the format of a
point pattern object.
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