On Wed, Dec 4, 2013 at 8:01 PM, Marcelino de la Cruz
marcelino.delac...@upm.es wrote:
..
The plot of the data published by Strauss (1975) was scanned and
digitised by Sandra Pereira, University of Western Australia, 2002.
So you can digitize yourself the original true coordinates from the
Lee De Cola ldec...@comcast.net writes:
does anyone know the original, true coordinates of the spatstat redwoodfull
data?
i can't find them in:
Strauss, D. J. (1975). A Model for Clustering. Biometrika 62(2): 467-475.
i think reporting spatial data in rescaled units is unscientific.
does anyone know the original, true coordinates of the spatstat redwoodfull
data? i can't find them in:
Strauss, D. J. (1975). A Model for Clustering. Biometrika 62(2): 467-475.
i think reporting spatial data in rescaled units is unscientific.
Lee De Cola, PhD, MCP.
DATA to Insight
] original coordinates of the redwood data?
You can complaint directly to to David Strauss for their unscientific
behaviour. :-p
As ?redwoodfull says:
The dataset redwoodfull contains the full point pattern of 195 trees.
The window has been rescaled to the unit square. Its physical size
Some years ago I noticed that Strauss's seminal paper in Biometrika
(vol. 62, No. 2,
1975, pp. 467 - 475) states that there are n = 77 points in region I.
(See page 474,
just below Figure 1.) However if one looks at the region I pattern in
spatstat, e.g.:
X - with(redwoodfull.extra,
here's what i'll do:
mult - 130
trees - ppp(
mult * redwoodfull$x, mult * redwoodfull$y,
c(0, mult), c(0, mult),
unitname = c('meter', 'meters')
)
it is unscientific to analyze empirical data in other than the original
geographic units - how else can we speak meaningfully e.g. of
