Dendrogram
（重定向自Dendogram）
![Hierarchical clustering dendrogram of the Iris dataset (using R). Source](/Images/godic/202501/08/Iris_dendrogram1637.png")
![](/Images/godic/202501/08/Clusters.svg1637.png")
![](/Images/godic/202501/08/Hierarchical_clustering_simple_diagram.svg1637.png")
A dendrogram (from Greek dendro "tree" and gramma "drawing") is a tree diagram frequently used to illustrate the arrangement of the clusters produced by hierarchical clustering. Dendrograms are often used in computational biology to illustrate the clustering of genes or samples, sometimes on top of heatmaps.