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Without getting into an argument about the value of x/0: think about
the problem in a slightly different way...
What if in 10 days there was:
5 days above the EMA and 5 days below the EMA
=> the ratio is 5/5 = 1.0
6 days above the EMA and 4 days below the EMA
=> the ratio is 6/4 = 1.5
7 days above the EMA and 3 days below the EMA
=> the ratio is 7/3 = 2.3
8 days above the EMA and 2 days below the EMA
=> the ratio is 8/2 = 4.0%
9 days above the EMA and 1 day below the EMA
=> the ratio is 9/1 = 9.0
10 days above the EMA and 0 days below the EMA
=> the ratio is 10/0 is undefined, but all you care about is that it
is bigger than 9. Why generate errors when you do not need to? So
lets call it 10/1 = 10.0
If in x days, the ratio value is x, then all of the days are above the
EMA. If in x days there were x-1 days above the EMA and the remaining
one day was below the EMA, the ratio value will be x-1.
There is a very big difference between just hammering away with
numbers, and understanding precisely what the numbers are showing you.
There is no difference between your ratio spiking off to inifinity
and mine going to x, but mine wont cause MetaStock to generate errors.
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