Visualization with Heat Maps

This lesson explains what a heat map is, why it is used, and how to visualize data with a heat map using Python libraries.

Introduction to heat maps #

Heat maps are a plotted data matrix where each value in the matrix is a category.

As an example, consider the heat map shown below.

This heat map represents the average monthly temperatures at Central Park, New York for a given year (rows) and month (columns). The coloring of the heat map makes it easy to see that the warmest months are consistently from Jun to Sep.

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