Jim Dean
 Sage
  Posts: 3022
Joined: 9/21/2006
Location: L'ville, GA
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When DO is used, the FT period should be quite large relative to the BT period, if you are studying statistics. For example, BT=250 and FT= 2500. Also note that the Boundary selection is important. Usually monthly is an appropriate starting point.
[Edited by Jim Dean on 9/6/2013 5:23 AM]
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