TSR_custom

#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 SpringGreen
#property indicator_color2 OrangeRed
#property indicator_color3 White

extern double ChannelWidth=0.5;
extern double HoursLookBack=4.0;

double RangeUP[], RangeDOWN[], AvRange[];
double RangeFactor=0;
int currday,cnt,lookback;
double TodaysLow; 
double TodaysHigh;

int init()
  {
   lookback = (HoursLookBack*60)/Period();
   
   SetIndexStyle(0,DRAW_LINE,STYLE_DOT);
   SetIndexBuffer(0,RangeUP);
   SetIndexStyle(1,DRAW_LINE,STYLE_DOT);
   SetIndexBuffer(1,RangeDOWN);
   SetIndexStyle(2,DRAW_LINE,STYLE_DOT);
   SetIndexBuffer(2,AvRange);
   
   IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS));
  }
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {
   Comment("Lookback hours = ",HoursLookBack,", Bars = ",lookback, " Channel width ratio = ",ChannelWidth);
   
   int counted_bars = IndicatorCounted();
   if(counted_bars < 0) 
       return(-1);
   if(counted_bars > 0) 
       counted_bars--;
   int limit = Bars - counted_bars-200;
   
   for(cnt = 0; cnt < limit ; cnt++)
     {   
         currday=MathFloor(cnt*Period()/1440);
         
         //if(TimeDay(Time[cnt]) != TimeDay(Time[cnt+1]))
         //{
           double Range1=Range(1);
           double Range5=Range(5);
           double Range10=Range(10);
           double Range20=Range(20);
           double AverageRange=(Range1+Range5+Range10+Range20)/4;
           RangeFactor=AverageRange*ChannelWidth;
           RangeFactor=NormalizeDouble(RangeFactor,Digits);
         //}
   
         TodaysLow=Low[iLowest(NULL,0,MODE_LOW,lookback,cnt)];
         TodaysHigh=High[iHighest(NULL,0,MODE_HIGH,lookback,cnt)];
        
         RangeUP[cnt] = TodaysLow + RangeFactor;
         RangeDOWN[cnt] = TodaysHigh - RangeFactor;
         AvRange[cnt] = ((TodaysLow + RangeFactor)+(TodaysHigh - RangeFactor))/2;
       
    }
   }
//+------------------------------------------------------------------+

double Range (int Days)
{
   double DailyHigh,DailyLow,DailyRange,TotalRange,AR=0;
   
   for (int i=1;i<=Days;i++)
   {
         int WeekDay=TimeDayOfWeek(iTime(NULL, PERIOD_D1,i+currday));
         if (WeekDay != 0 || WeekDay != 6)
         {
            DailyHigh=iHigh(Symbol(),PERIOD_D1,i+currday);      
            DailyLow=iLow(Symbol(),PERIOD_D1,i+currday);
            DailyRange=(DailyHigh-DailyLow);
            TotalRange=TotalRange+DailyRange;
         }
         else
         {
            Days=Days+1;
         }
   }
   
   AR=TotalRange/Days;
   AR=NormalizeDouble(AR,Digits);
   return(AR);
}