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Pardon me, but what do the "7 day mov av." and "15 day mov av." mean? 17:02, 5 January 2009 (EST)
 * It a centered seven days resp. fifteen days moving average - I should really have included the plural-s --LArron 17:04, 5 January 2009 (EST)
 * Thank you. I now get that they're 7- and 15-day moving averages.  (Though, I think you're explanation could have been a little more clear.  The unfamiliar statistics terminology "centered", "resp." and "moving" threw me off for a while.)  17:13, 5 January 2009 (EST)
 * * sheepishly* Now that I know that, what's a moving average?   17:13, 5 January 2009 (EST)
 * It's the average of the previous 7 or 15 or whatever days. Makes it easier to identify long-term trends and unusual fluctuations and such. -- 17:16, 5 January 2009 (EST)
 * Thank you, AK. I get it now.   17:23, 5 January 2009 (EST)


 * 1) I'll upload the RW version when uploading files is allowed, again.
 * 2) Sorry for the lack of explanation: I integrated a seven days centered moving average, i.e., for each day, I calculated the average of seven days: the prior three, the day itself, and the following three. Usually, you have a weekly pattern, and this takes care of it... I'll include a longer m.a. to look for trends: If you look at a chart of the Dow Jones etc., you'll find most times a 100, 180 or 200 days m.a. included, usually a prior moving average, i.e., on a given day, the average of the last 100, 180 or 200 days is taken.
 * LArron 05:57, 6 January 2009 (EST)