SciPy - Clustering and Distance
You want to form clusters by cutting the dendrogram at a fixed depth of 2. Which
fcluster call is correct?You want to form clusters by cutting the dendrogram at a fixed depth of 2. Which fcluster call is correct?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand depth criterion
Criterion 'depth' cuts the dendrogram at a specified depth level, so t=2 means cut at depth 2.Step 2: Differentiate from other criteria
'distance' cuts by distance, 'maxclust' by cluster count, 'inconsistent' by inconsistency measure.Final Answer:
fcluster(Z, t=2, criterion='depth') -> Option BQuick Check:
Cut dendrogram by depth = criterion 'depth' [OK]
Quick Trick: Use criterion 'depth' to cut dendrogram by level [OK]
Common Mistakes:
- Using distance or maxclust for depth cut
- Confusing depth with cluster count
- Misunderstanding criterion parameter
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