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heatmap-composition.md

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Heatmap (Composition)

Used For

  • Viewing the pair-wise correlations between all OTUs or taxonomic groups and samples

Visualization Parameters

Taxonomic Level

The taxonomic level to aggregate the OTUs at. The OTUs will be grouped together (by summing the OTU values) at the selected taxonomic level before the analysis is applied.

Column Variable

The quantitative variable to display on the columns:

  • Taxonomic Group or OTU
  • Sample ID

Row Variable

The quantitative variable to display on the rows:

  • Taxonomic Group or OTU
  • Sample ID

Categorical Variable

Create comparative sample groups based on categorical variables uploaded in the metadata file.

Optionally create a categorical variable from a quantitative variable by using the Quantile Range feature on the Projects home page.

The samples are automatically rearranged into the respective sample groups. Each sample group is identified by a colored label.

Show Labels

Hiding labels makes the heatmap smaller, useful for large heatmaps.

  • Show All Labels Show the labels on both the rows and columns
  • Show X-Axis Labels Only Labels only appear on the columns
  • Show Y-Axis Labels Only Labels only appear on the rows
  • Hide Labels No labels will appear

Cluster Taxonomic Groups/OTU By

Determines whether the taxonomic group/OTU rows/columns should be clustered by by the OTU count or not.

Color Scheme

Choose the specific color scheme of the heatmap

Interactive Elements

  • Hover over each cell to determine its row and column label and its specific correlation value.

Additional Features

  • Save Snapshot: Save the visualization to the experiment notebook
  • Download: Downloads the visualization as a PNG file
  • Share: Creates a shareable link that allows you to share the visualization with others