The importance of a good adviser...

After a long time wandering among several charts to represent some experimental data, I was completely stuck. None depicts the data clearly, neither illustrates the idea I want to transmit. When I was almost giving up and using an awful 3D chart, my adviser comes to see what I was doing, while drinking his after-lunch coffee and in a glimpse just solves my problem. "Do not complicate. Use two 2D charts!" - he said. Obviously he was right. Simple solution.

"Damn! Why didn't I think about that before? "

Anyway, it worked fine and the two charts below express well what I intend.