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Group: Metatrader MQ4 Indicators

Title: Stochastic RSI

Description: Stochastic RSI

//+------------------------------------------------------------------+
//|                                               Stochastic RSI.mq4 |
//|                                                tonyc2a@yahoo.com |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "tonyc2a@yahoo.com"
#property link      ""

#property indicator_separate_window
#property indicator_buffers 2
#property indicator_minimum -5
#property indicator_maximum 105
#property indicator_color1 Maroon
#property indicator_color2 Blue

//---- input parameters
extern int RSI_Periods=14;
extern int Percent_K=14;
extern int Percent_D=9;
extern int NumOfBars=0;

//---- buffers
double Buffer1[];
double Buffer2[];

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,3);
   SetIndexBuffer(0,Buffer1);
   SetIndexLabel(0,"StochRSI");
   SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,1);
   SetIndexBuffer(1,Buffer2);
   SetIndexLabel(1,"Signal");

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- TODO: add your code here
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int    counted_bars=IndicatorCounted();
   double Current_RSI,Lowest_RSI,Highest_RSI,sum_K;
//---- TODO: add your code here
   if(NumOfBars==0)NumOfBars=Bars;
   for(int i=NumOfBars-MathMax(RSI_Periods,Percent_K)-1;i>=0;i--){
      Current_RSI=iRSI(NULL,0,RSI_Periods,PRICE_TYPICAL,i);
      Highest_RSI=Current_RSI;
      Lowest_RSI=Current_RSI;
      
      for(int x=0;x<=Percent_K;x++){
         Lowest_RSI=MathMin(Lowest_RSI,iRSI(NULL,0,RSI_Periods,PRICE_TYPICAL,i+x));
         Highest_RSI=MathMax(Highest_RSI,iRSI(NULL,0,RSI_Periods,PRICE_TYPICAL,i+x));
         }

      sum_K=0;
      for(x=0;x<=Percent_D;x++) sum_K=sum_K+Buffer1[i+x];

      Buffer1[i]=((Current_RSI-Lowest_RSI)/(Highest_RSI-Lowest_RSI))*100;
      Buffer2[i]=sum_K/Percent_D;
      }
//----
   return(0);
  }
//+------------------------------------------------------------------+

Author/Source: Tony