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en:expl_var_examples

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en:expl_var_examples [2019/02/10 16:22] David Zelený [Example 1: Is the explained variance high enough to be considered as interesting?] |
en:expl_var_examples [2019/04/06 10:00] David Zelený [Example 3: Effect of environmental variables on species composition of plants in Carpathian wetlands tested by tb-RDA] |
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- | ====== Ordination analysis ====== | + | Section: [[en:ordination]] |

===== Explained variation and Monte Carlo permutation test (constrained ordination) ===== | ===== Explained variation and Monte Carlo permutation test (constrained ordination) ===== | ||

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Cl 1 0.006910560 0.8383942 0.736 | Cl 1 0.006910560 0.8383942 0.736 | ||

</code> | </code> | ||

- | Some variables (at the bottom of the table) do not explain significant part of variance, some do (with calcium, ''Ca'', explaining the most). What I did is in fact the first step of forward selection, which aims to select the subset of variables that explain the most variance in the model (in the first step the variables are sorted by explained variance, the first of them is tested, and if significant, it is included as the first selected variables into the model). This will be the topic for [[en:forward_sel_examples|Example 1 in Forward selection section]]. | + | Some variables (at the bottom of the table) do not explain significant part of variance, some do (with calcium, ''Ca'', explaining the most). What I did is in fact the first step of forward selection, which aims to select the subset of variables that explain the most variance in the model (in the first step the variables are sorted by explained variance, the first of them is tested, and if significant, it is included as the first selected variables into the model). This will be the topic for [[en:forward_sel_examples|Example 1 in Variable selection section]]. |

en/expl_var_examples.txt · Last modified: 2019/04/06 10:00 by David Zelený