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2008 Feb 06
0
kruskal's MONANOVA algorithm
...R, SPSS (Conjoint Analysis), and SAS' proc transreg in speed and accuracy. Currently, SAS and SPSS are giving similar results, but R's are quite different. There is something I am misunderstanding about acepackage and/or isoMDS. The data looks like this: Brand Price Life Hazard Rank 1 Goodstone $69.99 60,000 Yes 3 2 Goodstone $69.99 70,000 No 2 ... 7 Pirogi $69.99 50,000 No 7 8 Pirogi $69.99 70,000 No 1 9 Pirogi $74.99 50,000 Yes 8 The ace and avas functions transform the y values into very small values of rank, like this: $ty [1] -1.355212...