linearmarkconnect(X, i, j, r=NULL, ...)
"lpp"
which
must be a multitype point pattern (a marked point pattern
whose marks are a X
from which distances are measured.
Defaults to the first level of marks(X)
.X
to which distances are measured.
Defaults to the second level of marks(X)
.linearpcfcross
and linearpcf
."fv"
(see fv.object
).i
is interpreted as a
level of the factor marks(X)
. Beware of the usual
trap with factors: numerical values are not
interpreted in the same way as character values.markconnect
for a point pattern on a linear network (object of class "lpp"
). The argument i
will be interpreted as
levels of the factor marks(X)
.
If i
is missing, it defaults to the first
level of the marks factor.
The argument r
is the vector of values for the
distance $r$ at which $p_{ij}(r)$
should be evaluated.
The values of $r$ must be increasing nonnegative numbers
and the maximum $r$ value must not exceed the radius of the
largest disc contained in the window.
linearpcfcross
,
linearpcf
,
linearmarkequal
,
markconnect
.pab <- linearmarkconnect(chicago, "assault", "burglary")
plot(alltypes(chicago, linearmarkconnect))
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