iCustom returns wrong values

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3
jpyp99 2015.11.23 09:45
 

Hi,

I know a lot of people have had this problem before and very often it is a coding problem. However for the life of me I cannot figure out my problem. I have googled and read just about everything I could find on this problem and I can't find a solution. I am using an indicator that seems to use three buffers but when I look at the data window I see only one value being returned/displayed. Therefore I should use 0 in the iCustom call to reference the buffer. When I place the mouse over the indicator bar I have the right value which is the same as in the data window. However when I print the value returned by iCustom, it is different value. So different that sometimes it is positive when it should negative or vice versa. I also tried value 1 and 2 instead of 0 for the buffer number also with no luck.


Here is my iCustom call:

   dFisherValPrev=iCustom(NULL,0,"Fisher_Yur4ik",10,0,1);
   Print("FishVal = ",dFisherValPrev);

Here is the indicator code:

#property  indicator_separate_window
#property  indicator_buffers 3
#property  indicator_color1  Black
#property  indicator_color2  Lime
#property  indicator_color3  Red
 
extern int period=10;

double         ExtBuffer0[];
double         ExtBuffer1[];
double         ExtBuffer2[];


int init()
  {
   
   
   SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,2,Red);
   SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID,2,Lime);
   SetIndexStyle(2,DRAW_HISTOGRAM);
   IndicatorDigits(Digits+1);

   SetIndexBuffer(0,ExtBuffer0);
   SetIndexBuffer(1,ExtBuffer1);
   SetIndexBuffer(2,ExtBuffer2);

   IndicatorShortName("Fisher");
   SetIndexLabel(1,NULL);
   SetIndexLabel(2,NULL);

   return(0);
  }


int start()
  {
   //int     period=10;
   int    limit;
   int    counted_bars=IndicatorCounted();
   double prev,current;
   double Value=0,Value1=0,Value2=0,Fish=0,Fish1=0,Fish2=0;
   double price;
   double MinL=0;
   double MaxH=0;  
   

   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;


   for(int i=0; i<limit; i++)
    {  MaxH = High[Highest(NULL,0,MODE_HIGH,period,i)];
       MinL = Low[Lowest(NULL,0,MODE_LOW,period,i)];
      price = (High[i]+Low[i])/2;
      Value = 0.33*2*((price-MinL)/(MaxH-MinL)-0.5) + 0.67*Value1;     
      Value=MathMin(MathMax(Value,-0.999),0.999); 
      ExtBuffer0[i]=0.5*MathLog((1+Value)/(1-Value))+0.5*Fish1;
      Value1=Value;
      Fish1=ExtBuffer0[i];
      
    }


   bool up=true;
   for(i=limit-2; i>=0; i--)
     {
      current=ExtBuffer0[i];
      prev=ExtBuffer0[i+1];
           
      if (((current<0)&&(prev>0))||(current<0))   up= false;    
      if (((current>0)&&(prev<0))||(current>0))   up= true;
      
      if(!up)
        {
         ExtBuffer2[i]=current;
         ExtBuffer1[i]=0.0;
        }
        
       else
         {
          ExtBuffer1[i]=current;
          ExtBuffer2[i]=0.0;
         }
     }

   return(0);
  }
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13006
WHRoeder 2015.11.23 12:55 #
 
   for(int i=0; i<limit; i++){
      :
      Value = 0.33*2*((price-MinL)/(MaxH-MinL)-0.5) + 0.67*Value1;     
      Value=MathMin(MathMax(Value,-0.999),0.999); 
      ExtBuffer0[i]=0.5*MathLog((1+Value)/(1-Value))+0.5*Fish1;
      Value1=Value;
      Fish1=ExtBuffer0[i];
    }
That is a repainting indicator; useless for trading.
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3
jpyp99 2015.11.23 17:51 #
 

Ok but I have had the same problem with other indicators. Is the problem because they repaint? If it is, I don't understand because I am retrieving the value from the last bar which is close by then so the value shouldn't be changing anymore.


edit: Forget about it. I understand the repainting issue now. Thanks for your help.

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