Checks whether its argument is a point pattern
(object of class "ppp"
).
is.ppp(x)
Any object.
TRUE
if x
is a point pattern,
otherwise FALSE
.
This function tests whether the object x
is a point pattern object of class
"ppp"
. See ppm.object
for details
of this class.
The result is determined to be TRUE
if x
inherits from "ppp"
, i.e. if x
has "ppp"
amongst its classes.