Re: [amibroker] Re: if (Buy[i] >= 0) not behaving as expected, AmiBroker Email List Archive

On Thu, May 7, 2009 at 4:37 PM, gmorlosky <gmorlosky@xxxxxxxxx> wrote:

Thanks - clearly I got something backwards - while I study arrays, do you have an example of code similar to this that works, to help me understand ?
I just want to loop through certain tickers that pass some formula first. Basically a loop inside a loop.

--- In amibroker@xxxxxxxxxxxxxxx, dingo <waledingo@xxx> wrote:
>
> You've got a basic misunderstanding of loops and arrays. In AFL You
> shouldn't have arrary operators like IIF inside a loop.
>
> You need to go back an reread the help file on arrays.
>
> d
>
>

> On Thu, May 7, 2009 at 3:32 PM, gmorlosky <gmorlosky@xxx> wrote:
>
> > Seriously - it works nicely, except for that one line of code.
> >
> > Any other thoughts
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, Aron <aron.groups@> wrote:
> > >
> > > everything..
> > >
> > > gmorlosky wrote:
> > > > In the line ~9 "if(Buy[i] >= 0", if I change that to 1, which is equal
> > to a Buy, I get no Plots, even though the Explore shows 1s for half the
> > tickers, else with 0, I get all plots. What is wrong ?
> > > >
> > > > NumBars = 20;
> > > > fvb = Status("firstvisiblebar");
> > > > for( i = 0; ( symbol = StrExtract( TickerList, i ) ) != ""; i++ )
> > > > {
> > > > Buy = IIf(ROCt > ROCc AND RSIt > RSIc, 1,0);
> > > > Sell = IIf(ROCt < ROCc AND RSIt < RSIc, -1,0);
> > > >
> > > > fc = Foreign( symbol, "C" );
> > > > if (Buy[i] >= 0) // something not right here ???
> > > > {
> > > > if( ! IsNull( fc[ 0 ] ) )
> > > > {
> > > > Plot( 100 * ( fc - fc[ fvb ] )/ fc[ fvb ], symbol, colorLightOrange
> > + ( (2*i) % 15 ), styleLine );
> > > > }
> > > > }
> > > > }
> > > >
> > > >
> > > >
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------------------------------------

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