Consider the variables:
y=0 or y=1
x1=0 or x1=1
x2=0 or x2=1
x3=0 or x3=1
xtotal = x1+x2+x3
xtotal is a scale calculated from the items x1,x2,x3.
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Which is the better syntax?
logistic y xtotal
or
xi: logistic y i.xtotal
Other variables will be included in the model.
Other scales will be calculated from n items.
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Thank you.
BD.
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