spatial (version 7.3-5)

ppinit: Read a Point Process Object from a File

Description

Read a file in standard format and create a point process object.

Usage

ppinit(file)

Arguments

file

string giving file name

Value

• class "pp" object with components x, y, xl, xu, yl, yu

Side Effects

Calls ppregion to set the domain.

Details

The file should contain

the number of points a header (ignored) xl xu yl yu scale x y (repeated n times)

References

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

See Also

ppregion

Examples

towns <- ppinit("towns.dat")
par(pty="s")
plot(Kfn(towns, 10), type="b", xlab="distance", ylab="L(t)")