unmark
From spatstat.geom v1.65-5
by Adrian Baddeley
Remove Marks
Remove the mark information from a spatial dataset.
Usage
unmark(X)
# S3 method for ppp
unmark(X)
# S3 method for splitppp
unmark(X)
# S3 method for psp
unmark(X)
# S3 method for ppx
unmark(X)
Arguments
- X
A point pattern (object of class
"ppp"
), a split point pattern (object of class"splitppp"
), a line segment pattern (object of class"psp"
) or a multidimensional space-time point pattern (object of class"ppx"
).
Details
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.
Value
An object of the same class as X
with any mark information deleted.
See Also
Examples
# NOT RUN {
data(lansing)
hicks <- lansing[lansing$marks == "hickory", ]
# }
# NOT RUN {
plot(hicks) # still a marked point pattern, but only 1 value of marks
plot(unmark(hicks)) # unmarked
# }
Community examples
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