Title :
Decomposition of pearson residuals of three-variables contingency cube
Author :
Tsumoto, Shusaku ; Hirano, Shoji
Author_Institution :
Dept. of Med. Inf., Shimane Univ., Izumo
Abstract :
This paper shows the meaning of Pearson residuals when a contingency table is three dimensional. While information granules of statistical independence of two variables can be viewed as determinants of 2 times 2- submatrices, those of three variables consist of several combinations of linear equations which will become odds ratio when they are equal to 0. Interstingly, the property on the symmetry of two dimensional tables is lost, and the lost of symmetry gives some meaning of Pearson residuals of three dimensional tables.
Keywords :
matrix algebra; statistical analysis; 3D contingency table; Pearson residuals; determinants; information granules; linear equations; statistical independence; submatrices; three-variables contingency cube; Biomedical informatics; Bismuth; Data mining; Equations; Matrices; Probability; Statistics;
Conference_Titel :
Granular Computing, 2008. GrC 2008. IEEE International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-2512-9
Electronic_ISBN :
978-1-4244-2513-6
DOI :
10.1109/GRC.2008.4664792