Canonical Correspondence Analysis
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CCA seeks an ordination of the sites (samples) in terms of their biological components which is optimised in terms of the influence of environmental factors.
Environmental variables Selecting Environmental variables Linear combinations of environmental variables Transforming environmental variables Circular environmental variables
Biological variables The normal situation is for the biological data to comprise a sample (column) by species (row) array. The species data would comprise quantitative counts of the number of individuals in each sample. (See Creating and editing a data set).
Presentation of Results - Your output
CCA produces an ordination of the species and sites. It also produces biplots that show the inferred ranking of the species along an environmental variable. The output from ECOM is divided into a number of different sections of a tabbed notebook. These are described below.
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