Heatmap

A heatmap is a data visualization technique that represents data values in a matrix format using colors. It allows for the quick identification of patterns, trends, and anomalies in complex data sets. Each color in the heatmap corresponds to a specific value, making it easy to interpret large amounts of information at a glance. Common use cases include displaying correlation matrices, geographical data, and user interaction metrics in web analytics. Heatmaps are widely used across various fields, including data science, marketing, and machine learning.