A Fourfold Display for 2 by 2 by k Tables
نویسنده
چکیده
This paper describes the fourfold display, a graphic designed to display the frequencies in a 2 × 2 × k contingency table. In this display the frequency in each cell is shown by a quarter circle, whose area is proportional to the cell count in a given 2 × 2 layer, in a way that depicts the odds ratios for k strata. Confidence rings for the odds ratio can be superimposed to provide a visual test of the hypothesis of no association in each stratum. Résumé Cet article décrit un visuel quadruple, une méthode graphique conçu pour visualiser les fréquences dans une table de contingence 2 × 2 × k . Dans ce visuel, la fréquence de chaque cellule est representée par un quart de cercle, qui a une superficie proportionnelle au compte de la cellule dans un couche 2 × 2 donée, afin de décrire les rapports de chance pour k strates. Des anneaux qui démonstrant la confiance des rapports de chance peuvent être superposés afin de fournir un test visuel de l'hypothèse d'aucune association dans chaque strate.
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