Figure 5
From: The emotional arcs of stories are dominated by six basic shapes
Dendrogram from the hierarchical clustering procedure using Ward’s minimum variance method. For each cluster, a selection of the 20 most central books to a fully-connected network of books are shown along with the average of the emotional arc for all books in the cluster, along with the cluster ID and number of books in each cluster (shown in parenthesis). The cluster ID is given by numbering the clusters in order of linkage starting at 0, with each individual book representing a cluster of size 1 such that the final cluster (all books) has the ID \(2(N-1)\) for the \(N=1\text{,}327\) books. At the bottom, we show the average Silhouette value for all books, with higher value representing a more appropriate number of clusters. For each of the 60 leaf nodes (right side) we show the number of books within the cluster and the most central book to that cluster’s book network.