coeffofline_true_v1

//+------------------------------------------------------------------+
//|                                             CoeffofLine_true.mq5 |
//|                                       Ramdass - Conversion only  |
//+------------------------------------------------------------------+
#property copyright "Ramdass - Conversion only"
#property link ""
//---- íîìåð âåðñèè èíäèêàòîðà
#property version   "1.00"
//---- îòðèñîâêà èíäèêàòîðà â îòäåëüíîì îêíå
#property indicator_separate_window
//---- äëÿ ðàñ÷åòà è îòðèñîâêè èíäèêàòîðà èñïîëüçîâàí îäèí áóôåð
#property indicator_buffers 1
//---- èñïîëüçîâàíî âñåãî îäíî ãðàôè÷åñêîå ïîñòðîåíèå
#property indicator_plots   1
//---- îòðèñîâêà èíäèêàòîðà â âèäå ãèñòîãðàììû
#property indicator_type1   DRAW_HISTOGRAM
//---- â êà÷åñòâå öâåòà èíäèêàòîðà èñïîëüçîâàí MediumSlateBlue öâåò
#property indicator_color1  clrMediumSlateBlue
//---- òîëùèíà ãèñòîãðàììû ðàâíà 2
#property indicator_width1  2
//+----------------------------------------------+
//| Âõîäíûå ïàðàìåòðû èíäèêàòîðà                 |
//+----------------------------------------------+
input int SMMAPeriod=5; // Ïåðèîä óñðåäíåíèÿ
//+----------------------------------------------+
//---- îáúÿâëåíèå äèíàìè÷åñêîãî ìàññèâà, êîòîðûé áóäåò â 
//---- äàëüíåéøåì èñïîëüçîâàí â êà÷åñòâå èíäèêàòîðíîãî áóôåðà
double ExtLineBuffer[];
//---- îáúÿâëåíèå ïåðåìåííîé äëÿ õðàíåíèÿ õåíäëà èíäèêàòîðà
int Handle;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+  
int OnInit()
  {
//---- ïðåâðàùåíèå äèíàìè÷åñêîãî ìàññèâà ExtLineBuffer â èíäèêàòîðíûé áóôåð
   SetIndexBuffer(0,ExtLineBuffer,INDICATOR_DATA);
//---- îñóùåñòâëåíèå ñäâèãà íà÷àëà îòñ÷åòà îòðèñîâêè èíäèêàòîðà MAPeriod
   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,2*SMMAPeriod+3);
//---- èíäåêñàöèÿ ýëåìåíòîâ â áóôåðàõ êàê â òàéìñåðèÿõ
   ArraySetAsSeries(ExtLineBuffer,true);
//---- ïîëó÷åíèå õåíäëà èíäèêàòîðà
   Handle=iMA(NULL,0,SMMAPeriod,3,MODE_SMMA,PRICE_MEDIAN);
   if(Handle==INVALID_HANDLE)
     {
      Print(" Íå óäàëîñü ïîëó÷èòü õåíäë èíäèêàòîðà SMMA");
      return(INIT_FAILED);
     }
//---- çàâåðøåíèå èíèöèàëèçàöèè
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,    // êîëè÷åñòâî èñòîðèè â áàðàõ íà òåêóùåì òèêå
                const int prev_calculated,// êîëè÷åñòâî èñòîðèè â áàðàõ íà ïðåäûäóùåì òèêå
                const datetime &time[],
                const double &open[],
                const double& high[],     // öåíîâîé ìàññèâ ìàêñèìóìîâ öåíû äëÿ ðàñ÷åòà èíäèêàòîðà
                const double& low[],      // öåíîâîé ìàññèâ ìèíèìóìîâ  öåíû äëÿ ðàñ÷åòà èíäèêàòîðà
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
//---- ïðîâåðêà êîëè÷åñòâà áàðîâ íà äîñòàòî÷íîñòü äëÿ ðàñ÷åòà
   if(BarsCalculated(Handle)<rates_total || rates_total<2*SMMAPeriod-1)
      return(0);
//---- îáúÿâëåíèÿ ëîêàëüíûõ ïåðåìåííûõ 
   int to_copy,limit,Count,bar,cnt,iii,ndot=SMMAPeriod;
   double Sum,SMMA[],TYVar,ZYVar,TIndicatorVar,ZIndicatorVar,M,N,AY,AIndicator;
//---- èíäåêñàöèÿ ýëåìåíòîâ â ìàññèâàõ êàê â òàéìñåðèÿõ
   ArraySetAsSeries(SMMA,true);
   ArraySetAsSeries(high,true);
   ArraySetAsSeries(low,true);
//---- ðàñ÷åò ñòàðòîâîãî íîìåðà limit äëÿ öèêëà ïåðåñ÷åòà áàðîâ
   if(prev_calculated>rates_total || prev_calculated<=0) // ïðîâåðêà íà ïåðâûé ñòàðò ðàñ÷åòà èíäèêàòîðà
     {
      limit=rates_total-SMMAPeriod-ndot-1; // ñòàðòîâûé íîìåð äëÿ ðàñ÷åòà âñåõ áàðîâ
      to_copy=rates_total-SMMAPeriod;
     }
   else
     {
      limit=rates_total-prev_calculated; // ñòàðòîâûé íîìåð äëÿ ðàñ÷åòà íîâûõ áàðîâ
      to_copy=limit+ndot+1;
     }
//--- êîïèðóåì âíîâü ïîÿâèâøèåñÿ äàííûå â ìàññèâ SMMA[]
   if(CopyBuffer(Handle,0,0,to_copy,SMMA)<=0) return(0);
//---- îñíîâíîé öèêë ðàñ÷åòà èíäèêàòîðà
   for(bar=limit; bar>=0; bar--)
     {
      TYVar = 0;
      ZYVar = 0;
      N = 0;
      M = 0;
      TIndicatorVar = 0;
      ZIndicatorVar = 0;
      //---- öèêë ñóììèðîâàíèÿ çíà÷åíèé
      for(cnt=ndot; cnt>=1; cnt--) // n=5 -  ïî ïÿòè òî÷êàì
        {
         iii = bar + cnt - 1;
         Sum = (high[iii] + low[iii]) / 2;
         Count=SMMAPeriod+1-cnt;
         //ZYVar += Sum * Count; 
         ZYVar+=((high[bar+cnt-1]+low[bar+cnt-1])/2)*(6-cnt);
         TYVar+= Sum;
         N+=cnt*cnt; //ðàâíî 55
         M+=cnt; //ðàâíî 15
         ZIndicatorVar += SMMA[iii] * Count;
         TIndicatorVar += SMMA[iii];
        }
      AY=(TYVar+(N-2*ZYVar)*ndot/M)/M;
      AIndicator = (TIndicatorVar + (N - 2 * ZIndicatorVar) * ndot / M) / M;
      if(Symbol()=="EURUSD" || Symbol()=="GBPUSD" || Symbol()=="USDCAD" || Symbol()=="USDCHF"
         || Symbol()=="EURGBP" || Symbol()=="EURCHF" || Symbol()=="AUDUSD"
         || Symbol()=="GBPCHF")
         ExtLineBuffer[bar]=(-1000)*MathLog(AY/AIndicator);
      else ExtLineBuffer[bar]=(1000)*MathLog(AY/AIndicator);
     }
//----     
   return(rates_total);
  }
//+------------------------------------------------------------------+