3.2. Seaborn

3.2.1. Removing the top half of a heatmap

Half of a heatmap is useless. Anything distracting should be obliterated from a plot.

Duplicate cells of a heatmap are certainly such a case as they appear to hold valuable information.

Here is how to get rid of the clutter.

3.2.2. Clustermaps - big brother of heatmaps

Heatmaps have a bigger brother in Seaborn - clustermap.

When passed a rectangular data, it hierarchically groups values with dendrograms.

Makes it much easier to see similar correlations when used on a correlation matrix.