anches are formed.  

Distance and cluster method information are usually displayed at the bottom of the graph, while the vertical axis displays the height, which refers to the distance between clusters. We can also "cut" the dendrogram to specify a number of clusters, which is similar to defining _k_ in k-means clustering (which can also be problematic).  

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# Hierarchical agglomerative clustering

&lt;img style="right;" src="slides_img/clust-rad-link-unc.png"/&gt;

### Open "09-hclust.Rmd" to work thr