OS Gaussian SR Rate

//+------------------------------------------------------------------+
//|                        One Side Gaussian Support Resistance Rate |
//|                                                           mladen |
//|                                                                  |
//| original idea and first implementation by : Tinytjan             |
//| (http://codebase.mql4.com/ru/2735)                               |
//+------------------------------------------------------------------+
#property copyright "mladen"
#property link      "mladenfxgmail.com"

#property indicator_separate_window
#property indicator_buffers    1
#property indicator_color1     Red
#property indicator_minimum    0
#property indicator_maximum    1
#property indicator_level1     0.5
#property indicator_levelcolor DarkSlateGray

//
//
//
//
//

extern int SRPeriod   = 40;
extern int SmoothType = 3;

//
//
//
//
//

double SmoothHigh[];
double SmoothLow[];
double Rate[];


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+

#import "OneSideGaussianLibrary.ex4"
   void   BuffersInit();
   double Smooth(int version,int price,int i);
#import

//
//
//
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int init()
{
   BuffersInit();
   IndicatorBuffers(3);
      SetIndexBuffer(0, Rate);
      SetIndexBuffer(1, SmoothHigh);
      SetIndexBuffer(2, SmoothLow);
         SmoothType  = MathMax(MathMin(SmoothType,7),0);
      IndicatorShortName("One side Gaussian SR rate("+SRPeriod+","+SmoothType+")");   
   return(0);
}

//
//
//
//
//

int start()
{
   int counted_bars = IndicatorCounted();
   int i,limit;

   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
           limit=Bars-counted_bars;
   
   //
   //
   //
   //
   //
   
   for(i = limit; i >= 0; i--)
   {
      SmoothLow[i]  = Smooth(SmoothType,PRICE_LOW, i);
      SmoothHigh[i] = Smooth(SmoothType,PRICE_HIGH,i);
      
         double Min = SmoothLow [ArrayMinimum(SmoothLow ,SRPeriod,i)];
         double Max = SmoothHigh[ArrayMaximum(SmoothHigh,SRPeriod,i)];
         if (Min == Max) 
               Rate[i] = 0;
         else  Rate[i] = (Smooth(SmoothType,PRICE_WEIGHTED,i)-Min)/(Max - Min);
   }
   return(0);
}