[amibroker] Re: Mixing a loop with a function - can it be done using Ami ?

["iceboundbug" <iceboundbug@xxxxxxxxxxxx>]

Hello Tomasz,

Thankyou very much for the extreamly fast response. In my post, to 
keep it short I actually over simplified my problem and as a result I 
think misled you.

I actually wanted the function to return an element at a time into 
the loop for further calculations - I just put the plot statement to 
see what actually coming across which actually caused the confusion.

I have attached parts of my real code which does not appear to work - 
calling the StochRSI function within a loop. Also is there an easy 
way to monitor what is being returned.  Please help.  Thankyou in 
advance


//{==============================
function StochRSI(i,Periods) 
{
res=(RSI(Periods)-LLV(RSI(Periods),Periods))/(HHV(RSI
(Periods),Periods)-LLV(RSI(Periods),Periods));

result = res[i];//return ith element of the array
return result; 
}
//{==============================
    //: other codes
    //: other codes
//{==============================	
for (i = 1; i < BarCount-1; i++ )
 {//begin MAIN LOOP
 //:
 //:
       
 Periods = PreCalculatedArrayOutSidetheLoop[i]; //Periods vary with i
 Entry2 =(C[i]*1.1>BBandBot(WPrice[i],BBpds[i], deviations[i] ) ) AND 
( StochRSI(i,Periods) > 30 );
 //:
 //:
 }
//{==============================









--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> 
wrote:
>
> Hello,
> 
> Yes it is possible.
> 
> Your code does not work because it is coded without any sense.
> 
> Inside your loop you generate (BarCount) plots (that many !!!) 
while you should generate
> ONE plot only.
> Also LLV and HHV support variable period therefore it makes NO SENSE
> to call this funciton in the loop to vary the period.
> 
> Correct code for variable-period stochastic is WAY EASIER and 
SHORTER - actually one line
> And it does not require any looping.
> 
> //{============================== 
> //{ this is variable period already !
> function Stoch(array,Periods) 
> { 
>   return(array-LLV(array,Periods))/(HHV(array,Periods)-LLV
(array,Periods)); 
> } 
> Periods = 14 + 20 * Random(); // THIS IS VARIABLE ! 
> SR = Stoch(C,Periods); 
> Plot (SR,"",colorRed); 
> 
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message ----- 
> From: "iceboundbug" <iceboundbug@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Wednesday, May 09, 2007 12:01 PM
> Subject: [amibroker] Mixing a loop with a function - can it be done 
using Ami ?
> 
> 
> > Hello all,
> > 
> > I would appreciate if some one can tell me whether it is possible 
to 
> > Mix a loop with a function as detailed before - the code beloe 
does 
> > not work.  
> > 
> > The reason why I want to do this complicated way is to vary the 
> > period later on.
> > 
> > Thanks in advance
> > 
> > //{==============================
> > //{ Set up base Stoch Series function} 
> > function Stoch(Bar,Periods) 
> > {
> > {
> > result1=(C-LLV(C,Periods))/(HHV(C,Periods)-LLV(C,Periods)); 
> > result = result1[Bar];
> > }
> > return result; 
> > }
> > //{==============================
> > Periods = 14; // later on I want to vary this; hence this approach
> > for (Bar = 1 ; Bar < BarCount-1; Bar++ )
> > {
> > SR = Stoch(bar,Periods);
> > Plot (SR[bar],"",colorRed);
> > }
> > 
> > 
> > 
> > 
> > 
> > Please note that this group is for discussion between users only.
> > 
> > To get support from AmiBroker please send an e-mail directly to 
> > SUPPORT {at} amibroker.com
> > 
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> > 
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> >
>




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