Re: [Gretl-devel] Bug in Exponential Smoothing

On Sun, 13 Sep 2009, peter wrote: > I believe there is a bug in the Exponential Smoothing code. Using the > example from Makridakis, Wheelwright, Hyndman, "Forecasting Methods and > Applications," 3e, table 4-3 on page 151, ... > [ gretl produces results which have to be lagged one period to match those in the textbook. ] Yes, you're right. The exact specification of the EMA formula seems kind of arbitrary to me,

but given that we offer EMA at all we should abide by the most common convention. I think this should now be fixed in CVS.