scanpp(filename, window, header=TRUE, dir="", multitype=FALSE)"owin".read.table.filename is to be found.
Default is the current directory.multitype = TRUE)
or as numerical values (multitype = FALSE)."ppp",
see ppp.object). The file identified by filename in directory dir
should be a text file that can be read using read.table.
Thus, each line of the file (except possibly the first line)
contains data for one point in the
point pattern. Data are arranged in columns. There should be either
two columns (for an unmarked point pattern) or three columns (for a
marked point pattern).
If header=FALSE then the first two columns of data
will be interpreted as the $x$ and $y$ coordinates
of points. A third column, if present, will be interpreted as
containing the marks for these points. The marks will be
converted to a factor if multitype = TRUE.
If header=TRUE then the first line of the file should contain
string names for each of the columns of data. If there are columns
named x and y then these will be taken as the
cartesian coordinates, and any remaining column will be taken as
the marks. If there are no columns named x and y
then the first and second columns will be taken as the cartesian
coordinates.
Note that there is intentionally no default for window.
The window of observation should be specified.
If you really need to estimate the window, use the
Ripley-Rasson estimator ripras.
ppp.object,
ppp,
as.ppp,
ripras