Annotated Heatmaps of a Correlation Matrix in 5 Simple Steps

Julia Kho
Towards Data Science
4 min readMay 31, 2019

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A heatmap is a graphical representation of data in which data values are represented as colors. That is, it uses color in order to communicate a value to the reader. This is a great tool to assist the audience towards the areas that matter the most when you have a large volume of data.

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Julia is an analytics professional who loves to write easy to understand Python and data science articles for beginners