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en:varpart

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en:varpart [2019/02/10 16:27] David Zelený |
en:varpart [2019/02/25 20:57] David Zelený |
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- | ====== Ordination analysis ====== | + | Section: [[en:ordination]] |

===== Variation partitioning (constrained ordination) ===== | ===== Variation partitioning (constrained ordination) ===== | ||

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*[d] - unexplained variation. | *[d] - unexplained variation. | ||

- | If the variation is partitioned among groups with the same number of variables (e.g. two soil and two climatic variables), then variation explained by each group is comparable without adjustment. However, if groups contain different numbers of variables, variation explained by not adjusted R<sup>2</sup> is not comparable since R2 tends to increase with the number of explanatory variables. Here, use of adjusted R2 is recommended. | + | If the variation is partitioned among groups with the same number of variables (e.g. two soil and two climatic variables), then the variation explained by each group is comparable without adjustment. However, if groups contain different numbers of variables, variation explained by not adjusted R<sup>2</sup> is not comparable since R<sup>2</sup> tends to increase with the number of explanatory variables. Here, the use of adjusted R<sup>2</sup> is recommended. |

en/varpart.txt · Last modified: 2019/02/25 20:57 by David Zelený