[R-sig-Geo] spatial point pattern with correlation structure

[Rolf Turner]

On 10/11/2010, at 7:21 AM, Roger Bivand wrote:

> On Tue, 9 Nov 2010, Patrick Giraudoux wrote:
> 
>> Dear all,
>> 
>> I was wondering if there is an easy way to generate coordinates of clustered 
>> spatial point pattern.(possibly with variations on the degree of 
>> aggregation).
>> 
>> So far one can easily generate random patterns (splancs: csr; sp: spsample) 
>> or regular (sp: spsample or some simple lines of programme), but I cannot 
>> find out if there is some existing function in R capable of generating some 
>> points clustering...
> 
> In splancs, the pcp.sim() function is one possibility. However, there are 
> many more in spatstat, with rpoispp() as a very interesting possibility to 
> use an image to introduce inhomogeneity into the pattern.
> 
> Hope this helps,

There are quite a few tools for generating clustered point patterns in spatstat,
including rMatClust, rThomas, and rNeymanScott.  The spatstat package is referred
to under "Point pattern analysis" in the CRAN "Task View: Analysis of Spatial Data",
so I'm surprised that M. Giraudoux overlooked it.

	cheers,

		Rolf Turner