Read a file in standard format and create a point process object.
ppinit(file)
string giving file name
class "pp" object with components x, y, xl, xu, yl, yu
"pp"
x
y
xl
xu
yl
yu
Calls ppregion to set the domain.
ppregion
The file should contain
the number of points a header (ignored) xl xu yl yu scale x y (repeated n times)
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.
# NOT RUN { towns <- ppinit("towns.dat") par(pty="s") plot(Kfn(towns, 10), type="b", xlab="distance", ylab="L(t)") # }
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