Scots pines and other trees at Hyytiala
This dataset is a spatial point pattern of trees recorded at Hyytiala, Finland. The majority of the trees are Scots pines. See Kokkila et al (2002).
The dataset hyytiala
is a point pattern
(object of class "ppp"
) containing the spatial coordinates
of each tree, marked by species (a factor with levels aspen
,
birch
, pine
and rowan
).
The survey region is a 20 by 20 metre square.
Coordinates are given in metres.
data(hyytiala)
Nicolas Picard
Kokkila, T., Makela, A. and Nikinmaa E. (2002) A method for generating stand structures using Gibbs marked point process. Silva Fennica 36 265–277.
Picard, N, Bar-Hen, A., Mortier, F. and Chadoeuf, J. (2009) The multi-scale marked area-interaction point process: a model for the spatial pattern of trees. Scandinavian Journal of Statistics 36 23–41
data(hyytiala) if(require(spatstat.geom)) { plot(hyytiala, cols=2:5) }
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