How can you find the clusters to have upon looking at the dendrogram?

Data Science, AI and ML
#1

In a dendrogram, look for the largest vertical line which doesn’t cross any horizontal line.

With the help of this line, we can draw a horizontal line and then, the points where this horizontal line cross over the various vertical lines, we count all those intersecting points, and then count of intersecting points is the ideal answer for the number of clusters the dataset can have.