bubbeldiagram

A bubbeldiagram, also known as a bubble chart or bubble graph, is a type of data visualization that displays three variables of a dataset. It is an extension of the scatter plot where, instead of just two variables, a third variable is represented by the size of the bubbles. Each bubble in the chart corresponds to a data point, and its position on the horizontal axis represents the value of one variable, while its position on the vertical axis represents the value of another variable. The third variable dictates the diameter or area of the bubble.

Bubbeldiagrams are useful for identifying correlations and patterns between multiple variables simultaneously. The clustering of bubbles can reveal relationships, while outliers are easily noticeable. The size of the bubbles provides an immediate visual cue for the magnitude of the third dimension, making it possible to compare data points across all three variables at a glance. This type of chart is particularly effective when dealing with datasets that have a significant number of data points and where the interplay between three quantitative variables is of interest.

Common applications of bubbeldiagrams include analyzing market research, financial data, and scientific research. For instance, in marketing, one might plot advertising expenditure against sales revenue, with the size of the bubble representing market share. In finance, bubbles could represent stock performance, risk, and trading volume. The clarity and multi-dimensional nature of bubbeldiagrams make them a powerful tool for gaining insights from complex data.