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  1. 0

    Conceptual difference between STRESS and SSTRESS

    I am studying the difference between STRESS and SSTRESS optimization functions in the context of multidimensional scaling. I have encountered this definition of optimization criteria for the SSTRESS: My question is : why using squared estimators and squared distances (in MDS or in general)...
  2. 0

    INDSCAL with PROXSCAL

    Hello, I am fairly new with SPSS. I would like to run an individual differences analysis using PROXSCAL and I have a matrix of this fashion A B C D E 2 5 1 9 9 6 5 4 7 3 3 5 1 9 5 1 5 4 8 8 Where the a_ij are the...