A dendrogram is a tree-like diagram used to illustrate the arrangement of clusters formed by hierarchical clustering. It represents data objects as leaves and the links between them as branches, showing how clusters merge or split at various levels of similarity. Dendrograms are commonly used in data analysis to visualize the hierarchical relationships in a dataset, aiding in understanding patterns, such as in gene expression studies or customer segmentation. They can also help determine the optimal number of clusters by examining where significant splits occur. Overall, dendrograms provide a visual summary of the clustering process and can guide decision-making in various analytical applications.
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