gives an estimated observation based on the point data pdata.


  • RipleyRassonRegion is typically used to automatically derive an observation region from a point collection when no such region is provided. It is strongly suggested to obtain the correct observation region in the original data collection if at all possible, in order to get correct spatial statistics.
  • RipleyRassonRegion is a centrally rescaled version of the convex hull of the set of points, effectively given by ScalingTransform[{s,s,},c], where c is the region centroid of the convex hull.
  • For geographic regions, the corresponding operation is done on the projection.
  • The resulting region is an unbiased estimator of the true region under the assumption that the point collection was generated by a PoissonPointProcess. It may not be a very representative observation region for clustered and other forms of point collections.
  • The point data pdata can have the following forms:
  • {p1,p2,}points pi
    GeoPosition[],GeoPositionXYZ[],geographic points


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Basic Examples  (2)

Compute RipleyRassonRegion from random points in a unit disk:

Compute RipleyRassonRegion from random locations on the surface of the Earth:

Possible Issues  (1)

Computation of RipleyRassonRegion for a point configuration of InhomogeneousPoissonPointProcess will depend strongly on a given realization:

Compare RipleyRasson region estimates:

Wolfram Research (2020), RipleyRassonRegion, Wolfram Language function,


Wolfram Research (2020), RipleyRassonRegion, Wolfram Language function,


Wolfram Language. 2020. "RipleyRassonRegion." Wolfram Language & System Documentation Center. Wolfram Research.


Wolfram Language. (2020). RipleyRassonRegion. Wolfram Language & System Documentation Center. Retrieved from


@misc{reference.wolfram_2023_ripleyrassonregion, author="Wolfram Research", title="{RipleyRassonRegion}", year="2020", howpublished="\url{}", note=[Accessed: 17-April-2024 ]}


@online{reference.wolfram_2023_ripleyrassonregion, organization={Wolfram Research}, title={RipleyRassonRegion}, year={2020}, url={}, note=[Accessed: 17-April-2024 ]}