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Assuming by up day you mean Close>Open,
periods = 21; // substitute as required
NumUp = Sum(Close>Open, periods);
PercUp = NumUp/periods * 100;
If you mean an up day is todays close > yesterdays close, change the 2nd line
to
NumUp = Sum(Close>ref(Close,-1), periods);
Your welcome,
Nigel
On Fri, 26 Dec 2003 15:18, larypowell wrote:
> I would like an indicator that measures the % of UP days over the last X
> days. I have been looking at existing AFL codes looking for help, I am not
> even sure how to write it, any ideas would be appreciated.
>
> Thanks,
>
> Larry M. Powell
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