1. The problem statement, all variables and given/known data Hello! So, I recently did an experiment where I altered the eccentricity and distance from the sun of a planet orbiting around the Sun in a simulation and measured how long it took the planet to complete a single orbit. With this data, I compared my experimental data with the actual orbital period of each planet in the Solar System. I tested the eccentricity and distance of the sun for each planet so I was using actual values and essentially seeing how each planet's orbit differed between a simulation and real life. I'm writing up a lab report, but the problem is, I'm not sure what kind of graph to make for my data. I recently thought of creating two graphs, where eccentricity or distance from the Sun would be on the x-axis and orbital period could be on the y-axis. Would that be a good way to graph my data? Or is there a better way to do so? 2. Relevant equations Some of Kepler's laws are relevant here, but I didn't use them in my experiment. 3. The attempt at a solution I originally attempted to graph the experimental orbital periods against the actual ones, but that didn't work very well. I posted this thread a few minutes ago and, before it was deleted due to my not using the template, one user (@haruspex ) suggested making a graph with the error of the simulation on the y-axis. If I were to do that, what would I put on the x-axis?