TESTING SPATIAL RANDOMNESS BY MEANS OF ANGLES

被引：21

作者：

ASSUNCAO, R ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT STAT,SEATTLE,WA 98195

来源：

BIOMETRICS | 1994年 / 50卷 / 02期

关键词：

DISTANCE METHODS; NEAREST NEIGHBORS; SPATIAL PATTERN; SPATIAL RANDOMNESS; TESTS OF RANDOMNESS;

D O I：

10.2307/2533397

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In this paper, a test is derived for the hypothesis of complete spatial randomness. Consider events occurring as points in a planar region. A sample of n locations is selected and the two nearest events to each of the sample points are found. The test is based on the angle between the vectors joining each sample point to its two nearest neighbors. The power of the proposed test is compared with Hopkins and T-2 tests. The test can be very useful in forestry and ecology studies in regions with terrains that make distance measurements difficult.

引用

页码：531 / 537

页数：7

共 14 条

[1]

Besag J.E., 1973, B INT STAT I, V45, P153

[2] ON SAMPLING SPATIAL PATTERNS BY DISTANCE METHODS [J].