Functional summary statistics and testing for independence in marked point processes on the surface of three dimensional convex shapes

Autor:	Ward, Scott, Cohen, Edward A. K., Adams, Niall M.
Rok vydání:	2024
Předmět:	Statistics - Methodology 62M30
Druh dokumentu:	Working Paper
Popis:	The fundamental functional summary statistics used for studying spatial point patterns are developed for marked homogeneous and inhomogeneous point processes on the surface of a sphere. These are extended to point processes on the surface of three dimensional convex shapes given the bijective mapping from the shape to the sphere is known. These functional summary statistics are used to test for independence between the marginals of multi-type spatial point processes with methods for sampling the null distribution proposed and discussed. This is illustrated on both simulated data and the RNGC galaxy point pattern, revealing attractive dependencies between different galaxy types.
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2410.01063 Zobrazit plný text záznamu View this record from Arxiv