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- Users: TheGreenLama
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How to determine & monitor changes in frequency of an irregularly occuring event over time?
Chuckle, chuckle. Greg, you are correct. The equations are the same. My only defense is that it was late at night when I posted. As far as the statistical behavior of the events, I'm not exactly sure. I'm guessing they are random, or should be random. I want to know if they are in fact random...- TheGreenLama
- Post #8
- Forum: Engineering methods
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How to determine & monitor changes in frequency of an irregularly occuring event over time?
OK, so if I'm understanding your equation correctly, this tranlates to: EMA(t) = EMA(t-1)*(119/120) + s(t)/120 where s(t) = latest time gap in question (what I've noted above as "p"). From that link I mentioned above, an alternate form of the above equation (using similar terms) is: EMA(t) =...- TheGreenLama
- Post #5
- Forum: Engineering methods
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How to determine & monitor changes in frequency of an irregularly occuring event over time?
I'm still a little fuzzy on the terms. You've introduced a set time, 120, when talking about EMA. I thought EMA was an infinite series going back to include all terms. Isn't the unknown term introduced alpha (0 < alpha < 1)? With the corresponding equation something like Link: where p would...- TheGreenLama
- Post #3
- Forum: Engineering methods
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How to determine & monitor changes in frequency of an irregularly occuring event over time?
My question sounds fairly basic, but as statistics is not my strong suit I'm asking it here. I have an event that happens irregularly over time, similar to, but not exactly like hurricanes. I know the time and date of each event, and thus the "time gap" between events. After each new occurrence...- TheGreenLama
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- Replies: 9
- Forum: Engineering methods
