[Only including dataset "{{ dataframe.source_name if which == 'source' else dataframe.compare_name }}"] Squares are categorical associations (uncertainty coefficient & correlation ratio) from 0 to 1. The uncertainty coefficient is assymmetrical, (approximating how much the elements on the left PROVIDE INFORMATION on elements in the row). Circles are the symmetrical numerical correlations (Pearson's) from -1 to 1. The trivial diagonal is intentionally left blank for clarity.