Re: Regression question

Do you mean the predicted values of the response or dependent variable
"Y" is to be constrained to values > 0 ?? If so, then build the model
in terms of Ln(Y). he model will then be of the form Ln(Y) = f(X1,
X2, etc.) Predict values of Y by exponentiating the predicted values
of Ln(Y).

For the other one, use Ln(-Y)

.

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