CONSTRAINED DEDICOM

The DEDICOM method for the analysis of asymmetric data tables gives re presentations that are identified only up to a nonsingular transformat ion. To identify solutions it is proposed to impose subspace constrain ts on the stimulus coefficients. Most attention is paid to the case wh ere different subspace constraints are imposed on different dimensions . The procedures are discussed both for the case where the complete ta ble is fitted, and for cases where only off-diagonal elements are fitt ed. The case where the data table is skew-symmetric is treated separat ely as well.