Date: Sat, 14 Jan 2006 11:28:52 -0800
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
Subject: Re: Moving average
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Why would you want to
1. Use all of the values rather than a recent set to compute this
average. perhaps you would be better of just using the most receent
three values ?
2. After you decide or use analytical methods to determine how many
recent values to use . Why would you want to equally weight (believe)
the values . For example if you had determined that thrree (3) periods
was the optimal number to use to create the "average" or representative
you might find that
3/6, 2/6 and 1/6 was more appropriate than 2/6,2/6,2/6
For more on time series and attempts to characterize or represent see