> In an aricle entitled: Cell cycle-dependent distribution of telemeres, > centromeres, and chromosome-specific subsatelitte domains in the > interphase nucleus of mouse lymphocytes (Exp.Cell Res. 205p142-151,1993) > Claire Vourc'h, Domenica Taruscio, Ann Boyle and David Ward quoted a > formule for the calculation of the distribution of two random signals in a > sphere with diameter 1. > .... > I suppose the r2 etc. are exponents, but is there anybody here who can > explain the basics of the formule or where we can find more about it. Recently, I started a short study on the theory of nearest neighbours (of differtent colours). Distances between nearest neighbours are measured to test if a single population is distributed randomly (e.g. trees in a forrest). I have found something in these books: *Quantitative Stereology, Ervin E. Underwood, 1970, Addison Wesley Publishing Company. *Stochastic Geometry and its applications, D. Stoyan, Kendall and Mecke, 1987, John Wiley and Sons. (not a very clear story; distance measurement as a stochastic test). Erik Manders CRC Nuclear Structure and Function Group Sir William Dunn School of Pathology Oxford University South Parks Road, Oxford OX1 3RE, UK Tel: (+44/0) 1865 275529 (/275500) Fax: (+44/0) 1865 275501 E-Mail: [log in to unmask]