Heat Map Properties – Dendrograms

Option

Description

Settings for

Select whether to define settings for a row dendrogram or a column dendrogram. The controls in the rest of the dialog are adapted to the dendrogram type you choose.

   Update

Click this button to update the dendrogram.

   Show row/column dendrogram

Select this check box to make the dendrogram visible in the visualization. When this check box is selected the controls in the lower part of the dialog are available.

Note: To make the dendrogram visible the first time, it must be updated. Click the Update button, or choose automatic updates.

Source

   Calculated hierarchical clustering

Choose this option if you want the dendrogram to be drawn based on a hierarchical clustering calculation.

      Settings...

Opens the Edit Clustering Settings dialog where you can define which distance measure, clustering method, and ordering weight to use for the clustering calculation. You can also define a normalization method and a method to use for replacing empty values.

Note: If you change the settings and have chosen to update the dendrogram manually, you will need to do so afterwards.

To learn more about hierarchical clustering, see Overview of Hierarchical Clustering Theory. To learn more about normalization, see Normalizing Columns.

      Export...

Opens the Export Dendrogram dialog where you can specify a name for the exported dendrogram.

   Imported

Choose this option if you want to use a dendrogram from a previously performed clustering.

Update dendrogram

   Manually

Use this option if you want to control when the dendrogram is updated. You must update each time you have changed any clustering settings. Otherwise the dendrogram will not be valid.

   Automatically

Use this option if you want the dendrogram to be updated automatically when you change any clustering settings.

Position

Defines on which side of the heat map the dendrogram should be placed.

   Top

Places the dendrogram above the heat map. Available for column dendrograms.

   Bottom

Places the dendrogram below the heat map. Available for column dendrograms.

   Left

Places the dendrogram to the left of the heat map. Available for row dendrograms.

   Right

Places the dendrogram to the right of the heat map, Available for row dendrograms.

Appearance

   Use log scale

Changes the scale from a linear scale to a logarithmic base 10 scale [log10 (x)].

   Show pruning line

Specifies whether or not to show a pruning line in the dendrogram.

   Pruning line color

Specifies the color to use for the pruning line in the dendrogram.

   First alternating cluster color

Specifies the first color to use for the clusters when pruning in the dendrogram.

   Second alternating cluster color

Specifies the second color to use for the clusters when pruning in the dendrogram.