Hot answers tagged info-visualisation
The problem is that you have to fit 3 series of data within one simple chart. I would suggest something along these lines: You display the number of participants as bars, but the success rate is the filling of a bar. Also you may check ds3.js. They have lot's of ideas on visual representation of complex data.
"We want to show the improvements in the students who have pre- and post-test data." If that is the ultimate aim of this graph, to show the difference over two tests, then there's no point in graphically showing those who've taken only one part of the test or none of the tests - these can be summarised in a corner/outside the chart with some text (i.e. not ...
The best tip about designing graphs that I can provide is to have a very and simple message that you can see from looking at the visual representation of the data, otherwise it defeats the purpose of clarity in communication and becomes a visual design exercise. Having too much information often means you have to look at other graphs anyway because it is ...
As others have said, it depends on what you want to accomplish. You specifically highlight the "white noise" effect due to having so many overlapping nodes and edges in your 3D force layout, so I'll focus on that. I recommend using a different layout. Force-directed layouts tend to have high node density toward the middle, and in 3D that means the dense ...
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