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The front door to the fourth corner: variations on the sample unit × trait matrix in community ecology

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https://ir.library.oregonstate.edu/concern/articles/3b591b64b

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Abstract
  • Calculating a sample unit × trait matrix provides a flexible first step in analyzing the relationships between species traits and explanatory variables. This matrix is obtained by multiplying a sample unit × species matrix by a species × trait matrix, but the content of the resulting matrix depends on whether and how traits are standardized and whether or not the multiplication is followed by a weighted averaging step. To maximize versatility of the SU × trait matrix, including comparability among traits, and usability with a wide range of distance measures, we recommend first standardizing traits by min-to-max, then calculating abundance-weighted trait averages in each sample unit.
  • This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Akadémiai Kiadó, Budapest and can be found at: http://dx.doi.org/10.1556/168.2015.16.2.14
  • Keywords: Data analysis, Matrix multiplication, Distance measures, Data standardization, Species traits, Relativization, Weighted averaging, Rescaling traits
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  • McCune, B. (2015). The front door to the fourth corner: variations on the sample unit × trait matrix in community ecology. Community Ecology, 16(2), 267-271. doi:10.1556/168.2015.16.2.14
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  • 16
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  • 2
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