For a study on the personality correlates of empathic people, I was challenged with presenting 182 correlations on a poster. I settled on radial plots, customized R code I found, and I'm really happy with the results! PDF and more at:
Radial plots typically depict several numeric ranges radiating out from a center. Depicting correlations is a challenge because the midpoint (zero) is meaningful. Here, the zero is represented with a black circle, negative correlations are plotted within the black circle, and positive correlations are plotted outside the black circle.
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