Heat Map
A heat map is a type of data visualization that displays data in the form of a matrix. Each cell in the matrix represents a value, and the color of the cell represents the value. Heat maps are useful for showing the distribution of values in a matrix and can be used to identify patterns or trends in the data.
To create a heat map, you need to:
- Determine the variables: Identify the two variables you want to compare.
- Create the heat map: Draw a graph with the x-axis and y-axis.
When to use a heat map
- Showing the distribution of values in a matrix
- Identifying patterns or trends in the data
- Comparing values between different categories
When do not use a heat map
- Too many data points to display on a single chart
- Relationship between three or more variables
- Distribution of values in a dataset
- Hierarchical structure of data