I have a graph of points from a set of experiments, that I want to present on a slide.
The important information in the graph is both the values of the points, and more significantly, that the green points are above the blue points.
It is quick and easy to get my plotting framework (matplotlib) to connect each point to the next:
It should be fairly clear to anyone that the relationship between points is not expected to be linear.
I thought I could want to put the line in to make it clear that one is below the other. It can be hard to see the point markers on the projector screen.
Is this a good idea? Does showing plots this way enhance the visibility of the them for presenting, or does the fact the that lines themselves are fairly meaningless distract too much?
The whole presentation is for graduating engineering students and must be simple. While they would normally have the capacity to deal with complicated plots, the content of the presentation is complicated enough that I don’t want to distract them with anything that might waste thought time. I have already rejected the box-and-whiskers plot as too complicated; this is a plot of the mean values of that data.