Data from Kay and Heer (2016), primarily used for testing and examples.
For more details, see Kay and Heer (2016) or the Github repository describing the analysis: https://github.com/mjskay/ranking-correlation. The original experiment (but not this analysis of it) is described in Harrison et al. (2014).
data("RankCorr") is a substantially thinned version of the original posterior sample and has omitted several
parameters in order for it to be a more manageable size.
data("RankCorr_u_tau") is used for testing and examples and is roughly the equivalent of the following:
Kay, Matthew, and Jeffrey Heer. (2016). "Beyond Weber's law: A second look at ranking visualizations of correlation." IEEE transactions on visualization and computer graphics 22(1): 469-478. doi: 10.1109/TVCG.2015.2467671
Harrison, Lane, Fumeng Yang, Steven Franconeri, and Remco Chang. (2014). "Ranking visualizations of correlation using Weber's law." IEEE transactions on visualization and computer graphics 20(12): 1943-1952. doi: 10.1109/TVCG.2014.2346979
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