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Re: [amibroker] Sigma Bands



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If you meant 20 previous closes above the *current* MA,

- --8<--
period = 10;
nbars = 20;
aboveMA = LLV(C,nbars) > MA(C,period);
- --8<--

if you meant close has been above MA for 20 bars

- --8<--
period = 10;
nbars = 20;
aboveMA = sum(C>MA(C,period), nbars)==nbars;
- --8<--

Does this help?
	
	Nigel

if you meant 
On Thu, 12 Feb 2004 19:27, kk2628 wrote:
> Hi,
>
> I want to make sure all the previous 20 bars close are above a 10-day MA,
> currently I am using a lengthy method to code AFL and I appreciate if
> someone can share with me the shorter way to code.
>
> Lengthy way
> 10ma=ma(10,C);
> aboveMA = ref(C,-1)>10ma and ref(C,-2)>10ma and
> ref(C,-3)>10ma................
>
> Thanks
> KK
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