|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
association analysis
association analysis A hierarchical method of classification (see hierarchical and non-hierarchical classification methods), which is divisive and monothetic. The method uses χ2 as a measure of association between pairs of species (attributes) found at a range of sample sites (individuals). The species or attribute with the highest overall sum of χ2 values (i.e. the strongest links) with all other species is selected as the basis for subdivision into two groups of sites or individuals, either having or lacking that attribute. The process is then repeated for each new group until no further subdivision is required.
|
|
|
Cite this article
MICHAEL ALLABY. "association analysis." A Dictionary of Ecology. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "association analysis." A Dictionary of Ecology. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O14-associationanalysis.html MICHAEL ALLABY. "association analysis." A Dictionary of Ecology. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-associationanalysis.html |
|
association analysis
association analysis A hierarchical method of classification (see HIERARCHICAL and NON-HIERARCHICAL CLASSIFICATION METHODS), which is divisive and monothetic. The method uses χ2 as a measure of association between pairs of species (attributes) found at a range of sample sites (individuals). The species or attribute with the highest overall sum of χ2 values (i.e. the strongest links) with all other species is selected as the basis for subdivision into two groups of sites or individuals. The process is then repeated for each new group until no further subdivision is required.
|
|
|
Cite this article
MICHAEL ALLABY. "association analysis." A Dictionary of Zoology. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "association analysis." A Dictionary of Zoology. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O8-associationanalysis.html MICHAEL ALLABY. "association analysis." A Dictionary of Zoology. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-associationanalysis.html |
|
association analysis
association analysis A hierarchical method of classification which is divisive and monothetic. Association analysis uses χ2 as a measure of association between pairs of species (attributes) found at a range of sample sites (individuals). The species or attribute with the highest overall sum of χ2 values (i.e. the strongest links) with all other species is selected as the basis for subdivision into two groups of sites or of individuals, either having or lacking that attribute. The process is then repeated for each new group until no further subdivision is required.
|
|
|
Cite this article
MICHAEL ALLABY. "association analysis." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "association analysis." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O7-associationanalysis.html MICHAEL ALLABY. "association analysis." A Dictionary of Plant Sciences. 1998. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-associationanalysis.html |
|
Search over 100 encyclopedias and dictionaries:
HighBeam™ Research, Inc. © Copyright 2012. All rights reserved.
The Encyclopedia.com advertising network includes:
