Dollar index candles

ÿþ//----------------------------------------------------------------------------------------------------------------------------

#property copyright "mladen"

#property link      "mladenfx@gmail.com"

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

#property indicator_separate_window

#property indicator_buffers 5

#property indicator_plots   1

#property indicator_label1  "Dollar index"

#property indicator_type1   DRAW_COLOR_CANDLES

#property indicator_color1  clrDarkGray,clrDodgerBlue,clrSandyBrown

//

//---

//

input int    inpBarsToCalculate = 500; // Bars to calculate

input string inpSymbolsPrefix   = "";  // Symbols prefix

input string inpSymbolsSuffix   = "";  // Symbols suffix



double io[],ih[],il[],ic[],icolor[];

string symbols[] = {"EURUSD","USDJPY","GBPUSD","USDCAD","USDSEK","USDCHF"};

double pows[]    = {-0.576  ,0.136   ,-0.119  ,0.091   ,0.042   ,0.036   };

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

//

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

int OnInit()

{

   SetIndexBuffer(0,io);

   SetIndexBuffer(1,ih);

   SetIndexBuffer(2,il);

   SetIndexBuffer(3,ic);

   SetIndexBuffer(4,icolor,INDICATOR_COLOR_INDEX);

         for (int i=0; i<6; i++) symbols[i] = inpSymbolsPrefix+symbols[i]+inpSymbolsSuffix;

         return(INIT_SUCCEEDED);

}

void OnDeinit(const int reason)

  {

  }

//

//--

//

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[] )

{ 

   int _bars = (int)MathMax(inpBarsToCalculate,ChartGetInteger(0,CHART_VISIBLE_BARS));

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

   {

      if (i<rates_total-_bars) { io[i] = ih[i] = il[i] = ic[i] = EMPTY_VALUE; icolor[i] = 0; continue; }

      double dxyClose = 50.14348112;

      double dxyOpen  = 50.14348112;

      double dxyHigh  = 50.14348112;

      double dxyLow   = 50.14348112;

      for (int k=0; k<6; k++)

      {

         MqlRates _rates[]; 

              int _ratesCopied = CopyRates(symbols[k],0,time[i],1,_rates);

              if (_ratesCopied == 1)

              {

                  dxyClose *= MathPow(_rates[0].close,pows[k]);

                  dxyOpen  *= MathPow(_rates[0].open ,pows[k]);

                  dxyHigh  *= MathPow(_rates[0].high ,pows[k]);

                  dxyLow   *= MathPow(_rates[0].low  ,pows[k]);

               }                  

      }               

      ic[i] = dxyClose;

      io[i] = dxyOpen;

      ih[i] = dxyHigh;

      il[i] = dxyLow;

      icolor[i] = (ic[i]>io[i]) ? 1 : (ic[i]<io[i]) ? 2 : 0;

   }

   return(rates_total);

}