You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Role of Tessellation Methods in the Analysis of Three-Dimensional Spatial Point Patterns
Moira A. Mugglestone
Journal of Agricultural, Biological, and Environmental Statistics
Vol. 1, No. 2 (Jun., 1996), pp. 141-153
Published by: International Biometric Society
Stable URL: http://www.jstor.org/stable/1400362
Page Count: 13
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
This paper concerns the analysis of three-dimensional spatial point patterns using the Dirichlet tessellation. The tessellation method is illustrated by means of a case study in which spatial patterns of chromosomes in cells of a plant hybrid called Leontodon hispidus × L. taraxacoides are investigated. The objective of the analysis is to determine if chromosomes originating from the two species that produce the hybrid occupy separate spatial domains within the cell. The Dirichlet tessellation is used to construct a test for random labelling of chromosome locations by parent species. An alternative test based on the mean nearest-neighbor distance between chromosomes of different types is also illustrated. The tessellation test leads to rejection of the null hypothesis of random labelling whereas the test based on the mean nearest-neighbor distance does not. The reasons for the differences between the results of the two approaches are explored.
Journal of Agricultural, Biological, and Environmental Statistics © 1996 International Biometric Society