RBCI_

//+------------------------------------------------------------------+
//|                                                         RBCI.mq5 |
//|                                  Copyright 2002, Finware.ru Ltd. |
//|                                           http://www.finware.ru/ |
//+------------------------------------------------------------------+
//---- author of the indicator
#property copyright "Copyright 2002, Finware.ru Ltd."
//---- link to the website of the author
#property link      "http://www.finware.ru/"
//---- indicator version
#property version   "1.00"
//---- drawing the indicator in a separate window
#property indicator_separate_window
//---- one buffer is used for calculation and drawing the indicator
#property indicator_buffers 1
//---- only one plot is used
#property indicator_plots   1
//---- drawing the indicator as a line
#property indicator_type1   DRAW_LINE
//---- lime color is used as the color of the indicator line
#property indicator_color1  Lime
//---- the indicator line is a continuous curve
#property indicator_style1  STYLE_SOLID
//---- indicator line width is equal to 2
#property indicator_width1  2
//---- displaying the indicator label
#property indicator_label1  "RBCI"

//---- indicator input parameters
input int RBCIShift=0; //Horizontal shift of RBCI in bars 

//---- declaration and initialization of a variable for storing the number of calculated bars
int RBCIPeriod=56;

//---- declaration of a dynamic array that 
//---- will be used as an indicator buffer
double ExtLineBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+  
void OnInit()
  {
//---- set ExtLineBuffer dynamic array as indicator buffer
   SetIndexBuffer(0,ExtLineBuffer,INDICATOR_DATA);
//---- shifting the indicator horizontally by RBCIShift
   PlotIndexSetInteger(0,PLOT_SHIFT,RBCIShift);
//---- set the position, from which the indicator drawing starts
   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,RBCIPeriod);
//---- initializations of variable for indicator short name
   string shortname;
   StringConcatenate(shortname,"RBCI(",RBCIShift,")");
//--- create label to display in Data Window
   PlotIndexSetString(0,PLOT_LABEL,shortname);
//---- creating a name for displaying in a separate sub-window and in a tooltip
   IndicatorSetString(INDICATOR_SHORTNAME,shortname);
//---- determination of accuracy of displaying of the indicator values
   IndicatorSetInteger(INDICATOR_DIGITS,_Digits+1);
//---- restriction to draw empty values for the indicator
   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0.0);
//----
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,     // number of bars in history at the current tick
                const int prev_calculated, // number of bars calculated at previous call
                const int begin,           // bars reliable counting beginning index
                const double &price[]      // price array for calculation of the indicator
                )
  {  
//---- checking the number of bars to be enough for the calculation
   if(rates_total<RBCIPeriod-1+begin)
      return(0);

//---- declarations of local variables 
   int first,bar;
   double RBCI;

//---- calculation of the 'first' starting number for the bars recalculation loop
   if(prev_calculated>rates_total || prev_calculated<=0) // checking for the first start of calculation of an indicator
     {
      first=RBCIPeriod-1+begin;  // starting index for calculation of all bars
      //---- increase the position of the beginning of data by 'begin' bars as a result of calculation using data of another indicator
      if(begin>0)
         PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,begin+RBCIPeriod);
     }
   else first=prev_calculated-1; // starting index for calculation of new bars

//---- main indicator calculation loop
   for(bar=first; bar<rates_total; bar++)
     {
      //---- 
      RBCI = 
      -35.524181940 * price[bar - 0]
      -29.333989650 * price[bar - 1]
      -18.427744960 * price[bar - 2]
      -5.3418475670 * price[bar - 3]
      +7.0231636950 * price[bar - 4]
      +16.176281560 * price[bar - 5]
      +20.656621040 * price[bar - 6]
      +20.326611580 * price[bar - 7]
      +16.270239060 * price[bar - 8]
      +10.352401270 * price[bar - 9]
      +4.5964239920 * price[bar - 10]
      +0.5817527531 * price[bar - 11]
      -0.9559211961 * price[bar - 12]
      -0.2191111431 * price[bar - 13]
      +1.8617342810 * price[bar - 14]
      +4.0433304300 * price[bar - 15]
      +5.2342243280 * price[bar - 16]
      +4.8510862920 * price[bar - 17]
      +2.9604408870 * price[bar - 18]
      +0.1815496232 * price[bar - 19]
      -2.5919387010 * price[bar - 20]
      -4.5358834460 * price[bar - 21]
      -5.1808556950 * price[bar - 22]
      -4.5422535300 * price[bar - 23]
      -3.0671459820 * price[bar - 24]
      -1.4310126580 * price[bar - 25]
      -0.2740437883 * price[bar - 26]
      +0.0260722294 * price[bar - 27]
      -0.5359717954 * price[bar - 28]
      -1.6274916400 * price[bar - 29]
      -2.7322958560 * price[bar - 30]
      -3.3589596820 * price[bar - 31]
      -3.2216514550 * price[bar - 32]
      -2.3326257940 * price[bar - 33]
      -0.9760510577 * price[bar - 34]
      +0.4132650195 * price[bar - 35]
      +1.4202166770 * price[bar - 36]
      +1.7969987350 * price[bar - 37]
      +1.5412722800 * price[bar - 38]
      +0.8771442423 * price[bar - 39]
      +0.1561848839 * price[bar - 40]
      -0.2797065802 * price[bar - 41]
      -0.2245901578 * price[bar - 42]
      +0.3278853523 * price[bar - 43]
      +1.1887841480 * price[bar - 44]
      +2.0577410750 * price[bar - 45]
      +2.6270409820 * price[bar - 46]
      +2.6973742340 * price[bar - 47]
      +2.2289941280 * price[bar - 48]
      +1.3536792430 * price[bar - 49]
      +0.3089253193 * price[bar - 50]
      -0.6386689841 * price[bar - 51]
      -1.2766707670 * price[bar - 52]
      -1.5136918450 * price[bar - 53]
      -1.3775160780 * price[bar - 54]
      -1.6156173970 * price[bar - 55];
      
//---- Initialization of a cell of the indicator buffer with the received value of  RBCI
      ExtLineBuffer[bar]=-RBCI;
     }
//----     
   return(rates_total);
  }
//+------------------------------------------------------------------+