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rasbt / pattern_classification

A collection of tutorials and examples for solving and understanding machine learning and pattern classification tasks
GNU General Public License v3.0
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Problem with the Heatmap plus Row-dendrogram plot #41

Closed freko247 closed 9 years ago

freko247 commented 9 years ago

There's a problem with the Heatmap plus Row-dendrogram plot in the Hierarchical Agglomerative Clustering - Complete Linkage Clustering notebook. The dendrogram is actually up-side-down, I noticed this when I was using your example as a guide. My fix was to reverse the index of the data and the index labels, I could not find a clever way of reversing the dendrogram. Thanks for a great guide anyway. selection_002

rasbt commented 9 years ago

Thanks a lot for pointing this out. I think this can be accounted for by setting the count_sort order to 'descending' in the dendrogram or sort the DataFrame in reverse order using the dendrogram leave indices. I corrected the sections and added some explanations and a warning at the end to always check that the labels match before hiding the dendrogram labels, e.g.,

screen shot 2015-04-16 at 8 11 21 pm

Thanks, Sebastian