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?
How useful is a rainbow of moving averages?
To learn some Backtesting (Via Excel (Easy)) is more useful than any rainbow.
I do not use any rainbow average or even simple moving average.
That reminds me the way I started ... Had lot of indicators,
But finally I didn't know why and what I had to do.
Subjectivity ain't a problem. God has his own,
But he still rules the word as he pleases.
What matters is to experiment,
To see what it's worth !
By the way ... There is one more layer of subjectivity.
The way you use your tool ... A SMA can be useful or not.
Depends what you ask it to do - The purpose. Test & you'll see !
Same for the parametrization. It's an optimization or not. As you please.
Funny that you want "something else" to set the values for you...
You could ask the devil to handle it for you & you'd be happy.