Heatmap of <i>Phyla</i> assignments.

<p>The heatmap reports the normalized values of the taxonomic assignments at <i>phylum</i> level. Each value has been normalized following this criterion: Where <i>X<sub>ij</sub></i> is the occurrence of the phyla ‘j’ in the site ‘i’ and N is the number of site in the dataset (in this case 9). Using this transformation each <i>phyla</i> assignment can be compared in all sites independently from its order of magnitude.</p>