Farthest Distance to Boundary of Window
Computes the farthest distance from each pixel, or each data point, to the boundary of the window.
fardist(X, ...) ## S3 method for class 'owin' fardist(X, ..., squared=FALSE) ## S3 method for class 'ppp' fardist(X, ..., squared=FALSE)
X |
A spatial object such as a window or point pattern. |
... |
Arguments passed to |
squared |
Logical. If |
The function fardist is generic, with methods for
the classes owin and ppp.
For a window W, the command fardist(W)
returns a pixel image in which the value at each pixel
is the largest distance from that pixel to the boundary of
W.
For a point pattern X, with window W, the
command fardist(X) returns a numeric vector
with one entry for each point of X, giving the
largest distance from that data point to the boundary of W.
For fardist.owin, a pixel image (object of class "im").
For fardist.ppp, a numeric vector.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au
Rolf Turner r.turner@auckland.ac.nz
and Ege Rubak rubak@math.aau.dk
fardist(cells) plot(FR <- fardist(letterR))
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