A graphical method of displaying the inter-relationships between data in a matrix. The data is arranged radially around a circle with the relationships between the points typically drawn as arcs connecting the data together.
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MERGED
Create Circos-Like Graph to vizualise cross tables
Merged
Circos provides hot tables vizualization, that would be nice-to have in Spotfire
http://circos.ca/intro/tabular_visualization/