Jump to ContentJump to Main Navigation
Patterns In NatureThe Analysis of Species Co-Occurrences$
Users without a subscription are not able to see the full content.

James G. Sanderson and Stuart L. Pimm

Print publication date: 2015

Print ISBN-13: 9780226292724

Published to Chicago Scholarship Online: May 2016

DOI: 10.7208/chicago/9780226292861.001.0001

Show Summary Details
Page of

PRINTED FROM CHICAGO SCHOLARSHIP ONLINE (www.chicago.universitypressscholarship.com). (c) Copyright University of Chicago Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CHSO for personal use.date: 16 September 2021

How to Incorporate Constraints into Incidence Matrices

How to Incorporate Constraints into Incidence Matrices

Chapter:
(p.61) Chapter Four How to Incorporate Constraints into Incidence Matrices
Source:
Patterns In Nature
Author(s):

James G. Sanderson

Stuart L. Pimm

Publisher:
University of Chicago Press
DOI:10.7208/chicago/9780226292861.003.0004

Chapter 4 considers constraints that must be imposed on the random, or null, matrices so that each random matrix is representative of the observed, or actual, matrix. This means that the null matrix must preserve certain observed properties found in the actual matrix. First, the number of times a species is observed to occur (the so-called row constraint) is preserved in each and every null matrix. Second, the number of species found on each island or place (the column constraint) is also preserved. Also discussed is the incidence constraint.

Keywords:   constraint, column constraint, incidence constraint, observed matrix, random matrix, representative, row constraint

Chicago Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs, and if you can't find the answer there, please contact us.