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PureBytes Links
Trading Reference Links
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One way--
iif(C > ref(C,-1),true_part,false_part);
check Help files for Iff function.
dale b
--- In amibroker@xxxxxxxxxxxxxxx, "kw_odonian" <kw_odonian@xxxx>
wrote:
> Hi ABers,
>
> I'm trying to do something really simple but am stumped by AFL's
> behavior, and the docs don't clear it up. If I want to do a
> comparison of the current price with a price x bars ago, how do I
pull
> out a single value for the if-statement to work on? i.e. someone
> please correct,
>
> price_today = close[0] ;
> price_yesterday = close[-1] ;
>
> if (price_today > price_yesterday) etc. etc.
>
>
> ...a negative index number is not accepted, and the tutorial
> "Understanding how AFL works" implies the latest price is the
highest
> array index number?? How does that work, without knowing the array
> size beforehand? Is there another doc I'm missing? Thanks,
>
> kw
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