This works for me: data actual; input x1 x2 x3 x4; datalines; 1 1 1 2 1 1 2 1 1 1 2 2 1 2 1 1 1 2 1 2 1 2 2 1 1 2 2 2 2 1 1 1 2 1 1 2 2 1 2 2 2 2 1 2 2 2 2 1 ; proc print data=actual(obs=12); run; %mkteval(data=actual) %choiceff(data=actual, init=Actual, initvars=x1-x4, intiter=0, model=class(x1-x4 / sta), nsets=1, nalts=12, beta=zero)
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