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CO-tucker: a new method for the simultaneous analysis of a sequence of paired tables

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Abstract(s)

Relationships between species and their environment are a key com ponent to understand ecological communities. Usually, this kind of data are repeated over time or space for communities and their envi ronment, which leads to a sequence of pairs of ecological tables, i.e. multi-way matrices. This work proposes a new method which is a combined approach of STATICO and Tucker3 techniques and deals to the problem of describing not only the stable part of the dynamics of structure–function relationships between communities and their environment (in different locations and/or at different times), but also the interactions and changes associated with the ecosystems’ dynamics. At the same time, emphasis is given to the comparison with the STATICO method on the same (real) data set, where advan tages and drawbacks are explored and discussed. Thus, this study produces a general methodological framework and develops a new technique to facilitate the use of these practices by researchers. Fur thermore, from this first approach with estuarine environmental data one of the major advantages of modeling ecological data sets with the CO-TUCKER model is the gain in interpretability.

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Keywords

Core matrix CO-TUCKER joint biplot multi-way matrices Tucker3 STATICO

Citation

Mendes, S., Fernández-Gómez, M. J., Marques, S. C., Pardal, M. Â., Azeiteiro, U. M., & Galindo-Villardón, M. P. (2016). CO-tucker: a new method for the simultaneous analysis of a sequence of paired tables. Journal of Applied Statistics, 44(15), 2729–2755. https://doi.org/10.1080/02664763.2016.1261815

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Publisher

Informa UK Limited

CC License

Without CC licence

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