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Simulations to Determine the Mean and Variance of the Point‐Object Analogue of the Clark‐Evans Statistic
Author(s) -
Doguwa S. I.,
Upton G. J. G.,
Doguwa Sani I.
Publication year - 1989
Publication title -
biometrical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.108
H-Index - 63
eISSN - 1521-4036
pISSN - 0323-3847
DOI - 10.1002/bimj.4710310205
Subject(s) - statistic , statistics , mathematics , sampling (signal processing) , variance (accounting) , point (geometry) , range (aeronautics) , enhanced data rates for gsm evolution , object (grammar) , geometry , computer science , artificial intelligence , materials science , accounting , filter (signal processing) , business , composite material , computer vision
Abstract Doguwa and Upton (1988) propose edge corrections for the mean and variance of the average distance X , between a sampling point and the nearest object in a spatial point pattern for the case of a regular grid of sampling points. However, their edge corrections are not applicable to circular sampling windows. This paper extends the range of application of X , by providing its revised mean and variance for use with circular regions.