RAVI_FX_Fisher2

//+------------------------------------------------------------------+
//|                                              RAVI_FX_Fisher2.mq4 |
//|                                                              T.Y |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, Luis Guilherme Damiani"
#property link      "http://www.damianifx.com.br"

#property indicator_separate_window
#property indicator_buffers 3
#property indicator_color1 RoyalBlue
#property indicator_color2 PaleVioletRed
#property indicator_color3 PaleVioletRed
#property indicator_width1 2
#property indicator_width2 1
#property indicator_width3 1
#property indicator_level1 0  

//---- input parameters
extern int      MAfast   = 3;
extern int      MAslow   = 32;
extern int      MA_Mode  = MODE_LWMA;
extern double   Trigger  = 0.0;    // 0.07
extern bool     Apply_IFT=true;

//---- buffers
double RAVIfxFishBuffer[];
double LoTrigBuff[];
double HiTrigBuff[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0,DRAW_LINE);
   SetIndexBuffer(0,RAVIfxFishBuffer);
   SetIndexStyle(1,DRAW_LINE);
   SetIndexBuffer(1,LoTrigBuff);
   SetIndexStyle(2,DRAW_LINE);
   SetIndexBuffer(2,HiTrigBuff);
   
   if(Trigger>0.0)      return(0);
   int tf = Period();
   if(tf==1)    Trigger = 0.01;   
   if(tf==2)    Trigger = 0.014;  
   if(tf==5)    Trigger = 0.02;  
   if(tf==15)   Trigger = 0.04;  
   if(tf==30)   Trigger = 0.06;  
   if(tf==60)   Trigger = 0.08;  
   if(tf==240)  Trigger = 0.14;  
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+

int start()
  {
    int    counted_bars=IndicatorCounted();
    int    limit = Bars - counted_bars;
    double MAValue;

    if(counted_bars<0) return(-1);

    if(limit==Bars)   limit -= (MAslow+1);
    for(int i=limit-1; i>=0; i--){
        MAValue = 100.0 * (iMA(NULL,0,MAfast,0,MA_Mode,PRICE_TYPICAL,i) - iMA(NULL,0,MAslow,0,MA_Mode,PRICE_TYPICAL,i))*iATR(NULL,0,MAfast,i)
	              /iMA(NULL,0,MAslow,0,MA_Mode,PRICE_TYPICAL,i)/iATR(NULL,0,MAslow,i);
	    if(Apply_IFT)     RAVIfxFishBuffer[i] = (MathExp(2*MAValue)-1)/(MathExp(2*MAValue)+1);
	    else              RAVIfxFishBuffer[i] = MAValue;
	    
        LoTrigBuff[i]  = -Trigger;
        HiTrigBuff[i]  = Trigger;
    }
   
    return(0);
  }
//+------------------------------------------------------------------+