Получить данные с индикатора elder_auto_envelope_1_1

 

Всем привет!

Прошу помочь. 

Есть такой индикатор -  elder_auto_envelope_1_1. Рисует конверты. 

Как мне получить значения нижний границы конверта для своего адвайзера? Я пытаюсь использовать функцию iCustom.

Спасибо.

 

Далее - код индиктора elder_auto_envelope_1_1

//+------------------------------------------------------------------+

//|                                                                  |

//+------------------------------------------------------------------+

#property copyright "www.forex-tsd.com"

#property link      "www.forex-tsd.com"



#property indicator_chart_window

#property indicator_buffers 5

#property indicator_plots   4



#property indicator_label1  "Ema"

#property indicator_type1   DRAW_COLOR_LINE

#property indicator_color1  clrDeepSkyBlue,clrSandyBrown

#property indicator_width1  2

#property indicator_label2  "Fast ema"

#property indicator_type2   DRAW_LINE

#property indicator_color2  clrGray

#property indicator_label3  "Upper band"

#property indicator_type3   DRAW_LINE

#property indicator_style4  STYLE_DASHDOTDOT

#property indicator_color3  clrDimGray

#property indicator_label4  "Lower band"

#property indicator_type4   DRAW_LINE

#property indicator_style3  STYLE_DASHDOTDOT

#property indicator_color4  clrDimGray



//

//

//

//

//



enum enPrices

{

   pr_close,      // Close

   pr_open,       // Open

   pr_high,       // High

   pr_low,        // Low

   pr_median,     // Median

   pr_typical,    // Typical

   pr_weighted,   // Weighted

   pr_haclose,    // Heiken ashi close

   pr_haopen ,    // Heiken ashi open

   pr_hahigh,     // Heiken ashi high

   pr_halow,      // Heiken ashi low

   pr_hamedian,   // Heiken ashi median

   pr_hatypical,  // Heiken ashi typical

   pr_haweighted, // Heiken ashi weighted

   pr_haaverage   // Heiken ashi average

};

input int      EmaPeriod        = 21;

input int      FastEmaPeriod    = 13;

input enPrices Price            = pr_close;

input double   DeviationsFactor = 2.7;   // Original was 2.7 best for stock markets

input int      DeviationsPeriod = 100;



//

//

//

//

//



double slowEma[];

double slowEmaColor[];

double fastEma[];

double envelopeUp[];

double envelopeDn[];



//+------------------------------------------------------------------+

//|                                                                  |

//|------------------------------------------------------------------|

//

//

//

//

//



int OnInit()

{

   SetIndexBuffer(0,slowEma     ,INDICATOR_DATA);

   SetIndexBuffer(1,slowEmaColor,INDICATOR_COLOR_INDEX);

   SetIndexBuffer(2,fastEma     ,INDICATOR_DATA);

   SetIndexBuffer(3,envelopeUp  ,INDICATOR_DATA);

   SetIndexBuffer(4,envelopeDn  ,INDICATOR_DATA);

   return(0);

}



//+------------------------------------------------------------------+

//|                                                                  |

//+------------------------------------------------------------------+

//

//

//

//

//



double work[][2];

#define _percp 0

#define _devs  1



//

//

//

//

//



int OnCalculate(const int rates_total,

                const int prev_calculated,

                const datetime& time[],

                const double& open[],

                const double& high[],

                const double& low[],

                const double& close[],

                const long& tick_volume[],

                const long& volume[],

                const int& spread[])



{

   if (ArrayRange(work,0) != rates_total) ArrayResize(work,rates_total);



   //

   //

   //

   //

   //



   for (int i=(int)MathMax(prev_calculated-1,0); i<rates_total && !IsStopped(); i++)

   {

      double price = getPrice(Price,open,close,high,low,i,rates_total);

      double ema   = iEma(price,EmaPeriod,i,rates_total,0);

      double bullp = MathAbs(high[i]-ema);

      double bearp = MathAbs(low[i] -ema);

      double maxp  = MathMax(bullp,bearp);

      work[i][_percp] = maxp/ema;

      work[i][_devs]  = work[(int)MathMax(i-1,0)][_devs];

        

         //

         //

         //

         //

         //



            MqlDateTime curTime,prevTime; TimeToStruct(time[i],curTime); TimeToStruct((int)MathMax(i-1,0),prevTime);

            if (curTime.day_of_week<prevTime.day_of_week || _Period>PERIOD_W1)

            {

               double avg = 0;

               double sum = 0;

               for (int k=0; k<DeviationsPeriod && (i-k-1)>=0; k++) avg += work[i-k-1][_percp];

                                                                    avg /= DeviationsPeriod;

               for (int k=0; k<DeviationsPeriod && (i-k-1)>=0; k++) sum += (work[i-k-1][_percp]-avg)*(work[i-k-1][_percp]-avg);

            

               //

               //

               //

               //

               //

              

               work[i][_devs] = MathSqrt(sum/DeviationsPeriod);

            }

    

         //

         //

         //

         //

         //

      

         slowEma[i]    = ema;

         envelopeUp[i] = ema*(1+(DeviationsFactor*work[i][_devs]));

         envelopeDn[i] = ema*(1-(DeviationsFactor*work[i][_devs]));

            if (FastEmaPeriod>0)

            {

               fastEma[i] = iEma(price,FastEmaPeriod,i,rates_total,1);

               if (fastEma[i]>slowEma[i]) slowEmaColor[i] = 0;

               if (fastEma[i]<slowEma[i]) slowEmaColor[i] = 1;

            }              

   }

   return(rates_total);        

}



//------------------------------------------------------------------

//                                                                  

//------------------------------------------------------------------

//

//

//

//

//





double workHa[][4];

double getPrice(enPrices price, const double& open[], const double& close[], const double& high[], const double& low[], int i, int bars)

{



   //

   //

   //

   //

   //

  

   if (price>=pr_haclose && price<=pr_haaverage)

   {

      if (ArrayRange(workHa,0)!= bars) ArrayResize(workHa,bars);



         //

         //

         //

         //

         //

        

         double haOpen;

         if (i>0)

                haOpen  = (workHa[i-1][2] + workHa[i-1][3])/2.0;

         else   haOpen  = open[i]+close[i];

         double haClose = (open[i] + high[i] + low[i] + close[i]) / 4.0;

         double haHigh  = MathMax(high[i], MathMax(haOpen,haClose));

         double haLow   = MathMin(low[i] , MathMin(haOpen,haClose));



         if(haOpen  <haClose) { workHa[i][0] = haLow;  workHa[i][1] = haHigh; }

         else                 { workHa[i][0] = haHigh; workHa[i][1] = haLow;  }

                                workHa[i][2] = haOpen;

                                workHa[i][3] = haClose;

         //

         //

         //

         //

         //

        

         switch (price)

         {

            case pr_haclose:     return(haClose);

            case pr_haopen:      return(haOpen);

            case pr_hahigh:      return(haHigh);

            case pr_halow:       return(haLow);

            case pr_hamedian:    return((haHigh+haLow)/2.0);

            case pr_hatypical:   return((haHigh+haLow+haClose)/3.0);

            case pr_haweighted:  return((haHigh+haLow+haClose+haClose)/4.0);

            case pr_haaverage:   return((haHigh+haLow+haClose+haOpen)/4.0);

         }

   }

  

   //

   //

   //

   //

   //

  

   switch (price)

   {

      case pr_close:     return(close[i]);

      case pr_open:      return(open[i]);

      case pr_high:      return(high[i]);

      case pr_low:       return(low[i]);

      case pr_median:    return((high[i]+low[i])/2.0);

      case pr_typical:   return((high[i]+low[i]+close[i])/3.0);

      case pr_weighted:  return((high[i]+low[i]+close[i]+close[i])/4.0);

   }

   return(0);

}



//

//

//

//

//



double workEma[][2];

double iEma(double price, double period, int r, int totalBars, int instanceNo=0)

{

   if (ArrayRange(workEma,0)!= totalBars) ArrayResize(workEma,totalBars);

  

   //

   //

   //

   //

   //

      

   double alpha = 2.0 / (1.0+period);

   if (r<1)

          workEma[r][instanceNo] = price;

   else   workEma[r][instanceNo] = workEma[r-1][instanceNo]+alpha*(price-workEma[r-1][instanceNo]);

   return(workEma[r][instanceNo]);

}
 

Все работает!

Просто в функции CopyBuffer нужно было указать номер буффера не 0, а, в моем случае, 4 

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