I was given a chart on a test and asked to identify what kind of chart it is. I called it a treemap and I got that answer wrong because the professor said it was a mosaic chart. I was under the impression that those two are interchangeable. so what is the difference?
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"Mosaic plots assume that every level of one grouping variable can be combined with every level of another grouping variable, whereas treemaps do not make such an assumption. Treemaps work well even if the subdivisions of one group are entirely distinct from the subdivisions of another."
Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019
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