Dot Matrix Chart is the representation of dots of different categories. All the dots are in a matrix, and we can observe comparison as the dots of different categories have different colors associated with them. The more dots a category has, the more will be its value.
Why do you need it?
Dot Matrix Chart is helpful to see the total of all categories and the individual categories all at once. They are easy to understand and saves time. They look attractive and memorable.
What kind of data you can visualize with it?
Assume you have a dataset of books in a shop with different categories like comedy, drama, sci-fi, horror, etc. The categories in this chart are dots, and the number of dots is proportional to the stock available for that category of books.