rectcontact {spatstat} | R Documentation |
Computes an estimate of the contact distribution function of a set, using a rectangular structuring element.
rectcontact(X, ..., asp = 1, npasses=4, eps = NULL, r = NULL, breaks = NULL, correction = c("rs", "km"))
X |
Logical-valued image. The |
... |
Ignored. |
asp |
Aspect ratio for the rectangular metric. A single positive number.
See |
npasses |
Number of passes to perform in the distance algorithm. A positive integer.
See |
eps |
Pixel size, if the image should be converted to a finer grid. |
r |
Optional vector of distance values. Do Not Use This. |
breaks |
Do Not Use This. |
correction |
Character vector specifying the edge correction. |
To be written.
Object of class "fv"
.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au.
## make an image which is TRUE/FALSE inside/outside the letter R V <- letterR Frame(V) <- grow.rectangle(Frame(V), 0.5) Z <- as.im(V, value=TRUE, na.replace=FALSE) ## analyse plot(rectcontact(Z))