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If you want to reference an element, within the resulting array, outside of the function, then simply assign the result to a variable first.
fast = fast_EMA(period);
value = fast[i]; // where i is the desired element index
And yes, your usage of Optimize is correct.
Mike
--- In amibroker@xxxxxxxxxxxxxxx, "Markus Witzler" <funnybiz@xxx> wrote:
>
> Hello,
>
> I designed the following function which creates an exponential moving average:
>
> function Fast_EMA( period )
> {
> EMA_fast[ 0 ] = close[ 0 ]; seed value is being set
>
> for( i = 1; i < BarCount; i++ )
> {
> EMA_fast[ i ] =EMA_fast[i-1]+(close[i]-EMA_fast[i-1])*2/(period+1);
> }
>
> return EMA_fast;
> }
>
>
> Now, when I later want to reference a value of the function, do I use this: EMA_fast[i]
>
> And when want to optimize the length of my exp. moving average, do I use this:
>
> period=Optimize ("Fast EMA length", 50, 10, 150, 10);
>
> fast_EMA( period );
>
>
> Thanks for clarifying
>
> Markus
>
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