Any idea on visualization of multiple correlation matrix? -
i compare correlation structure in group of variables in 3 different cases, i'd produce graph this: sample graph
it's combination of 3 correlation matrices. hope more creative others ...
p.s. it's one: data-visualization
something similar r-blogger ; might find helpful,
http://www.r-bloggers.com/visualizing-the-correlations-of-a-matrix/