Negative values for multiplicative holt-winters
Posted: Fri Aug 26, 2011 6:08 am
Hi, could you clarify why negative values and zeros are not allowed for the multiplicative holt-winters exponential smoothing? I tried to read over the documentation, but couldn't find the explanation for that.
I used the same methodology in Statistica and it worked with negative values and zeros in the input series.
I currently use Eviews7.
Thank you.
I used the same methodology in Statistica and it worked with negative values and zeros in the input series.
I currently use Eviews7.
Thank you.