Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-25T14:01:40.091Z Has data issue: false hasContentIssue false

Explicit formulae for polygonally generated shape-densities in the basic tile

Published online by Cambridge University Press:  24 October 2008

Hui-Lin Le
Affiliation:
Statistical Laboratory, University of Cambridge

Abstract

Kendall and Le [4] gave an exact algorithm for the computation of a polygonally generated (auxiliary) shape-density (x, y) which we used to obtain ‘exact’ numerical densities for given (x, y). Here I derive an explicit formula for m̃(x, y), for an arbitrary convex plane polygon K, valid when the shape-point (x, y) lies in what will be called the ‘(upper) basic tile’ of the associated singular tessellation. In most circumstances this is all that is needed for the statistical analysis of collinearities.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1987

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Kendall, D. G.. Shape-manifolds, procrustean metrics, and complex projective spaces. Bull. London Math. Soc. 16 (1984), 81121.CrossRefGoogle Scholar
[2]Kendall, D. G.. Exact distributions for shapes of random triangles in convex sets. Adv. Appl. Prob. 17 (1985), 308329.CrossRefGoogle Scholar
[3]Kendall, D. G. and Kendall, W. S.. Alignments in two-dimensional random sets of points. Adv. Appl. Prob. 12 (1980), 380424.CrossRefGoogle Scholar
[4]Kendall, D. G. and Le, H.-L.. Exact shape-densities for random triangles in convex polygons. Adv. Appl. Prob. (in the Press).Google Scholar
[5]Small, C. G.. Random uniform triangles and the alignment problem. Math. Proc. Cambridge Philos. Soc. 91 (1982), 315322.CrossRefGoogle Scholar