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Displaying clinical data relationships using scaled rectangle diagrams
Author(s) -
Marshall Roger J.
Publication year - 2001
Publication title -
statistics in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.996
H-Index - 183
eISSN - 1097-0258
pISSN - 0277-6715
DOI - 10.1002/sim.747
Subject(s) - venn diagram , rectangle , categorical variable , diagram , computer science , statistics , data mining , mathematics , machine learning , geometry , mathematics education
A method is presented to draw rectangles to represent categorical data relationships. The idea is an adaptation of a scaled Venn diagram. Rectangles are drawn with area proportional to the frequency of categories and the rectangles are positioned to overlap each other so that the areas of overlap are in proportion to the joint frequencies of the characteristics. The diagrams are especially useful to illustrate symptom co‐occurrence. Copyright © 2001 John Wiley & Sons, Ltd.