Multiplicative regression model or accelerated failure time model, which becomes linear regression model after logarithmic transformation, is useful in analyzing data with positive responses, such as ...

In investing, absolute errors are expressed in dollars. For example, at the beginning of 2015, Amazon.com stock was trading for about $313 per share. Let's say you forecast that Amazon would be ...

Journal of the American Statistical Association, Vol. 61, No. 314, Part 1 (Jun., 1966), pp. 345-356 (12 pages) ...

If you predict a stock's value to be $100, whether it becomes $105 or $95, you were "off by $5" either way. Relative error ...