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Yarroll,
AB is amazingly fast especially for most things so I doubt
that there is any observable difference between the 3
alternatives you list.
Of course, if you do enough reiterations slight differences
would appear, if, for example, you were running the code
alternatives on a batch of 10,000 stocks. But for that
number of stocks disk access and even RAM access speeds
would be more significant than the alternative formulas you
are considering.
Although I have not kept a record, I have noticed that some
formula structures seem to be slower. If my memory is
correct using AMA() is slower than EMA().
Perhaps others have more detailed notes on speed
differences.
Regards,
b
--- Yarroll <yarroll999@xxxxxxxxxxxxxx> wrote:
> Hello,
>
>
> In Amibroker, which option below is best from the
> viewpoint of computation
> speed:
>
> a)
> (Close-LLV( Low, 15) ) / ( HHV( High, 15) - LLV( Low,
> 15) ) * 100 > 80
>
> or
> b)
> (Close-LLV( Low, 15) ) / ( HHV( High, 15) - LLV( Low,
> 15) ) * 10 > 8
>
> or
> c)
> (Close-LLV( Low, 15) ) / ( HHV( High, 15) - LLV( Low,
> 15) ) > 0.8
>
>
> Also, would it make sense for the same reason
> (computation efficiency) to
> round down all computed numbers to integers or at least
> make digit precision
> smaller. For example, 4-digit precision for indicators
> makes
> RSI(14)=52.1456, but I think very few people require that
> much precision.
> So does it make sense to keep using eg. RSI(14), or
> change it into eg.
> Prec( RSI(14), 1)
>
> Thank you. Best regards,
> Yarroll
>
>
>
>
>
>
>
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