Construct a space-time planar point pattern from a list object
Usage
# S3 method for list
stppp(P, ...)
Arguments
P
list object containing $data, an (n x 3) matrix corresponding to (x,y,t) values; $tlim, a vector of length 2 givign the observation time window; and $window giving an owin spatial observation winow, see ?owin for more details