Allin Cottrell wrote:
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,
Thanks very much.
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.