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The third choice would be the fastest (one less multiplication) ...
However, you'll get the most bang for the buck by calc'ing LLV15 = LLV
(Low, 15) first and then using the result in the calc you have as a
replacement for it being calc'ed there twice.
--- In amibroker@xxxxxxxxxxxxxxx, "Dave Merrill" <dmerrill@xxxx>
wrote:
> Not to be a Fred Flintstone about it, but why not just try it? If
you don't
> see any difference (my bet), any difference there is is too small
to matter.
> Iterating megathousands of times will of course be more sensitive
to small
> efficiencies, so if that's what your planning test that.
>
> Dave
>
>
> > 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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