Remove Marks
Remove the mark information from a spatial dataset.
unmark(X) ## S3 method for class 'ppp' unmark(X) ## S3 method for class 'splitppp' unmark(X) ## S3 method for class 'psp' unmark(X) ## S3 method for class 'ppx' unmark(X)
X |
A point pattern (object of class |
A ‘mark’ is a value attached to each point in a spatial point pattern, or attached to each line segment in a line segment pattern, etc.
The function unmark is a simple way to
remove the marks from such a dataset.
An object of the same class as X
with any mark information deleted.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au and Rolf Turner r.turner@auckland.ac.nz
data(lansing) hicks <- lansing[lansing$marks == "hickory", ] # plot(hicks) # still a marked point pattern, but only 1 value of marks # plot(unmark(hicks)) # unmarked
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