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Indices for detecting differences in species composition: some simplifications of RDA and CCA
Michael W Palmer1, Daniel J McGlinn, Lars Westerberg
1Department of Botany, Oklahoma State University, Stillwater, Oklahoma 74078, USA. mike.palmer@okstate.edu
Ecology
|July 1, 2008
Abstract:
We provide algebraic simplifications for the redundancy analysis (RDA) eigenvalue and the canonical correspondence analysis (CCA) eigenvalue in the special case of permanent plots sampled twice. The indices for RDA and CCA are interrelated and are intuitively interpretable. These simplifications also apply to simple split-plot designs and to a balanced design with two independent samples.
