ppinit(file)
pp
object with components
x
,
y
,
xl
,
xu
,
yl
,
yu
The file should contain
the number of points
a header (ignored)
xl xu yl yu scale
x y (repeated n times)
ppregion
to set the domain.
towns <- ppinit("towns.dat") par(pty="s") plot(Kfn(towns, 10), type="b", xlab="distance", ylab="L(t)")