Marimekko Chart
A Marimekko chart, also known as a mosaic plot, is a graphical representation of data that displays the relative proportions of categories in two variables. It is named after the Finnish design company Marimekko, which popularized the use of this type of chart in the 1960s.
The Marimekko chart consists of rectangles that are scaled to represent the proportion of each category in a particular variable, and are stacked horizontally or vertically to represent the proportion of each category in the other variable. The width of each rectangle is proportional to the percentage of cases in that category for the first variable, and the height of each rectangle is proportional to the percentage of cases in that category for the second variable.
Marimekko charts are useful for displaying complex categorical data, especially when there are many categories for each variable. They can also be used to highlight patterns and relationships between the two variables. However, they can be difficult to read if there are too many categories or if the rectangles are too small, and they may not be appropriate for data with small sample sizes or categories with low frequencies.