A dendrogram or tree diagram allows to illustrate the hierarchical organisation of several entities. For example, we often use it to make family trees. It is constituted of a root node, which give birth to several nodes that ends by giving leaf nodes (the
bottom of the tree). Dendrogram can be made with 2 types of dataset. i/ a numeric matrix where several variables describe the features of individuals. We can then calculate the distance between individuals and clustering them. ii/ A hierarchical
dataset where the relationship between entities is provided directly. These 2 cases are described below. Note that for clusterization, it is a good practice to provide the corresponding heat map that illustrates the structure.
Dendrogram for clustering
#402 Colour leaves of dendro
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- #400 Dendrogram Basics
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- #401 Dendrogram color
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- #401 Truncated dendrogram
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- #401 Dendrogram Orientation
Dendrogram with heatmap
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- #405 Dendrogram with heat map and coloured leaves
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- #404 Need of normalisation
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- #404 Normalizing your data
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- #404 Color on heat map
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- #404 Color and heat map
Tree from hierarchical data
related
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- Heatmap
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- Network chart
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- Tree plot
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- Parallel plot
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- Venn diagram