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Correspondence analysis of two transition tables;
Simultaneous visualization of two transition tables
Greenacre, Michael; Clavel, José G.
Universitat Pompeu Fabra. Departament d'Economia i Empresa
The case of two transition tables is considered, that is two squareasymmetric matrices of frequencies where the rows and columns of thematrices are the same objects observed at three different timepoints. Different ways of visualizing the tables, either separatelyor jointly, are examined. We generalize an existing idea where asquare matrix is descomposed into symmetric and skew-symmetric partsto two matrices, leading to a decomposition into four components: (1)average symmetric, (2) average skew-symmetric, (3) symmetricdifference from average, and (4) skew-symmetric difference fromaverage. The method is illustrated with an artificial example and anexample using real data from a study of changing values over threegenerations.
Statistics, Econometrics and Quantitative Methods
correspondence analysis
matrix decomposition
transition matrices
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