A dendrogram is a tree-structured graph used in heat maps to
visualize the result of a clustering calculation.
About this task
See
Dendrograms and clustering for general
information about dendrograms in the heat map, and
Hierarchical clustering for information
about the clustering tool.
Before you begin
Adding dendrograms to
heatmaps can only be done in the installed client.
Procedure
-
In the installed client, right-click the heat map visualization to
show the pop-up menu.
-
Select
Properties.
-
Go to the
Dendrograms page.
-
Select dendrogram type in the
Settings for drop-down list.
-
Select
Show row dendrogram or
Show column dendrogram depending on the
dendrogram type you selected in the previous step.
The settings for the selected dendrogram become available in the
lower part of the dialog.
-
Click
Calculated hierarchical clustering.
To use an already existing dendrogram instead, click
Imported, select which dendrogram to use from
the data table selector, and continue to step 12.
-
Click
Settings.
-
Select the
Clustering method,
Distance measure, and
Ordering weight from the drop-down lists.
-
Select how to replace empty values from the
Empty value replacement method drop-down list.
-
If you want to normalize the values in the heat map, select a
Normalization method from the drop-down list.
-
When done, click
OK to close the dialog.
-
For the dendrogram to show the correct clustering data, you must
update it. Click the
Automatically radio button if you want updates
to appear automatically every time a setting is changed. If you want to control
when the dendrogram is updated, click the
Manually radio button, and then the
Update button.
Results
The dendrogram is
shown in the visualization.