Since picking a period for a SMA or an EMA is so subjective, are there any moving average systems where the period is determined by something else?
are there any moving average systems where the period is determined by something else?
Event-based. The end.
Without a period, it wouldn't be a moving average anymore.
This is perfectly true, of course, in that without somehow quantifying the periodicity, there isn't a defined set of numbers from which an average can be calculated.
But the period doesn't necessarily have to be a time period.
It can be a period of bars formed according to non-temporal parameters (such as "numbers of transactions" as seen on tick charts, or "volumes transacted" as seen on constant-volume charts).
True, but the question would still remain: How far back--in time--would one go to count "a period of bars formed according to non-temporal parameters?"
)True, but the question would still remain: How far back--in time--would one go to count "a period of bars formed according to non-temporal parameters?"