You see them a lot in biological network / pathway / association studies. I personally hate them, because they're hard to read and comprehend. Many times a he

You see them a lot in biological network / pathway / association studies. I personally hate them, because they're hard to read and comprehend. Many times a heatmap conveys the exact same data in a more digestible way. Alas, chord diagrams can be pretty and make it seems like the analysis is much fancier than it really is.