"Count x for each set of D0,D1 and D2" means, for instance: if D0 = 25, D1=24 and D2 = 7 (obs N 17 in my dataset) then I have 25^x - 24^x - 7^x = 0. For this example x = 2, because 25^2 - 24^2 - 7^2 = 625 - 576 - 49 = 0. Exapmple №2: if D0 = 4.5, D1 = 4 and D2 = 3 then x =3, because 4.5^3 - 4^3 - 3^3 = 91 - 64 - 27 = 0. And I understand that I should look on observation WHERE=(_TYPE_="FINAL").
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