Table diagonalization

{{distinguish|text=matrix diagonalization or several unrelated uses of the term diagonalization in mathematics.}}

Diagonalization is the process of re-ordering the rows and columns of tables and charts so that the data forms an approximately diagonal line.Jacques Bertin, Semiology of Graphics: Diagrams, Networks, Maps. ESRI Press, 2010, 168-169. {{ISBN|978-1-58948-261-6}} This makes it easier for people to see patterns in the data.

File:Diagonalization examples.png

Diagonalization typically involves either raw data, percentages, means or residuals.

Generally once tables are diagonalized one of two patterns appears: hierarchy or segmentation.