Surface chart
A surface chart is another niche chart used mostly in the research and academia domain. It is used to plot the relationship between two independent variables and one dependent variable. Figure 8.33 shows sample data and the corresponding surface chart plot:
Figure 8.33 – Surface chart example
It is seldom used in the business domain and can be very difficult to interpret. Personally, I have only had to use it for visualizing a heuristic algorithm for academic purposes. It is predominantly used in the research and academic domain for visualizing three-dimensional relationships.
We will move on to the next chart.