MA_Crossover_Email_Alert





/*-----------------------------+
|			       |
| Shared by www.Aptrafx.com    |
|			       |
+------------------------------*/

//+------------------------------------------------------------------+
//|                                           MA-Crossover_Alert.mq4 |
//|         Copyright © 2005, Jason Robinson (jnrtrading)            |
//|                   http://www.jnrtading.co.uk                     |
//| Modified by Robert Hill to add LSMA and alert or send email      |
//| Added Global LastAlert to try to have alert only on new cross    |
//| but does not seem to work. So indicator does alert every bar     |
//+------------------------------------------------------------------+

/*
  +------------------------------------------------------------------+
  | Allows you to enter two ma periods and it will then show you at  |
  | Which point they crossed over. It is more usful on the shorter   |
  | periods that get obscured by the bars / candlesticks and when    |
  | the zoom level is out. Also allows you then to remove the  mas   |
  | from the chart. (emas are initially set at 5 and 6)              |
  +------------------------------------------------------------------+
*/   
#property copyright "Copyright © 2005, Jason Robinson (jnrtrading)"
#property link      "http://www.jnrtrading.co.uk"

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 LawnGreen
#property indicator_width1 2
#property indicator_color2 Red
#property indicator_width2 2

extern bool SoundON=true;
extern bool EmailON=false;

extern int FastMA_Mode = 1; //0=sma, 1=ema, 2=smma, 3=lwma, 4=lsma
extern int FastMA_Period =   5;
extern int FastPriceMode = 0;//0=close, 1=open, 2=high, 3=low, 4=median(high+low)/2, 5=typical(high+low+close)/3, 6=weighted(high+low+close+close)/4
extern int SlowMA_Mode = 1; //0=sma, 1=ema, 2=smma, 3=lwma, 4=lsma
extern int SlowMA_Period =   6;
extern int SlowPriceMode = 0;//0=close, 1=open, 2=high, 3=low, 4=median(high+low)/2, 5=typical(high+low+close)/3, 6=weighted(high+low+close+close)/4
double CrossUp[];
double CrossDown[];
int flagval1 = 0;
int flagval2 = 0;

//int    weights[]; // Array uses by TMA
//double divisor;   // Used by TMA

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
 
//---- indicators
//   IndicatorBuffers(3);
   SetIndexStyle(0, DRAW_ARROW, EMPTY);
   SetIndexArrow(0, 233);
   SetIndexBuffer(0, CrossUp);
   SetIndexStyle(1, DRAW_ARROW, EMPTY);
   SetIndexArrow(1, 234);
   SetIndexBuffer(1, CrossDown);
//----

   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 

//----
   return(0);
  }

//+------------------------------------------------------------------+
//| LSMA with PriceMode                                              |
//| PrMode  0=close, 1=open, 2=high, 3=low, 4=median(high+low)/2,    |
//| 5=typical(high+low+close)/3, 6=weighted(high+low+close+close)/4  |
//+------------------------------------------------------------------+

double LSMA(int Rperiod, int prMode, int shift)
{
   int i;
   double sum, pr;
   int length;
   double lengthvar;
   double tmp;
   double wt;

   length = Rperiod;
 
   sum = 0;
   for(i = length; i >= 1  ; i--)
   {
     lengthvar = length + 1;
     lengthvar /= 3;
     tmp = 0;
     switch (prMode)
     {
     case 0: pr = Close[length-i+shift];break;
     case 1: pr = Open[length-i+shift];break;
     case 2: pr = High[length-i+shift];break;
     case 3: pr = Low[length-i+shift];break;
     case 4: pr = (High[length-i+shift] + Low[length-i+shift])/2;break;
     case 5: pr = (High[length-i+shift] + Low[length-i+shift] + Close[length-i+shift])/3;break;
     case 6: pr = (High[length-i+shift] + Low[length-i+shift] + Close[length-i+shift] + Close[length-i+shift])/4;break;
     }
     tmp = ( i - lengthvar)*pr;
     sum+=tmp;
    }
    wt = sum*6/(length*(length+1));
    
    return(wt);
}

/*//====================================================================
// TMA coded as function from indicator code to save time on backtest
//====================================================================
double TMA(int Periods,int AppliedPrice,int shift)
{

  int i,j;
  double dPeriods = Periods;
  int to=MathCeil(dPeriods/2.0);
  
  //Calculate weigths
  ArrayResize(weights,Periods);

  for(i=0; i<to; i++)
  {
    weights[i]            = i+1;
    weights[Periods-1-i]  = i+1;
  }

  divisor = 0.0;
  
  for(j=0; j<Periods; j++)
    divisor += weights[j];
    
  double tma_val = 0.0;
  for(j=0; j<Periods; j++)
  {
      double price = getPrice(AppliedPrice, Periods-j);
      tma_val += price*weights[j];
  }

  return( tma_val/divisor);
}

//===================
// Used by TMA
//===================
double getPrice(int priceType, int index)
{
  double price = 0.0;
  
  switch(priceType)
  {
    case PRICE_OPEN    : price = Open[index];
                         break;
  
    case PRICE_HIGH    : price = High[index];
                         break;
  
    case PRICE_LOW     : price = Low[index];
                         break;
  
    case PRICE_MEDIAN  : price = (High[index]+Low[index])/2.0;
                         break;
  
    case PRICE_TYPICAL : price = (High[index]+Low[index]+Close[index])/3.0;
                         break;

    case PRICE_WEIGHTED: price = (High[index]+Low[index]+2*Close[index])/4.0;
                         break;

    
    case PRICE_CLOSE   : 
    default            : price = Close[index];
                         break;

  }
  
  return(price);
}
*/

//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start() {
   int limit, i, counter;
   double tmp=0;
   double fastMAnow, slowMAnow, fastMAprevious, slowMAprevious;
   double Range, AvgRange;
   int counted_bars=IndicatorCounted();
//---- check for possible errors
   if(counted_bars<0) return(-1);
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;

   limit=Bars-counted_bars;
   
   for(i = 0; i <= limit; i++) {
   
      counter=i;
      Range=0;
      AvgRange=0;
      for (counter=i ;counter<=i+9;counter++)
      {
         AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
      }
      Range=AvgRange/10;
       
      switch(FastMA_Mode)
      {
        case 4 :
        {
         fastMAnow = LSMA(FastMA_Period, FastPriceMode, i);
         fastMAprevious = LSMA(FastMA_Period, FastPriceMode,  i+1);
         break;
        }
        case 5 :
        {
   fastMAnow = iCustom(Symbol(),0,"TMA",FastMA_Period,0,i);
   fastMAprevious = iCustom(Symbol(),0,"TMA",FastMA_Period,0,i+1);
//         fastMAnow = TMA(FastMA_Period, FastPriceMode, i);
//         fastMAprevious = TMA(FastMA_Period, FastPriceMode, i+1);
         break;
        }
      
        default :
        {
         fastMAnow = iMA(NULL, 0, FastMA_Period, 0, FastMA_Mode, FastPriceMode, i);
         fastMAprevious = iMA(NULL, 0, FastMA_Period, 0, FastMA_Mode, FastPriceMode, i+1);
        }
      }

      switch(SlowMA_Mode)
      {
        case 4 :
        {
         slowMAnow = LSMA( SlowMA_Period, SlowPriceMode, i);
         slowMAprevious = LSMA( SlowMA_Period, SlowPriceMode, i+1);
        }
        case 5 :
        {
   slowMAnow = iCustom(Symbol(),0,"TMA",SlowMA_Period,0,i);
   slowMAprevious = iCustom(Symbol(),0,"TMA",SlowMA_Period,0,i+1);
//         slowMAnow = TMA(SlowMA_Period, SlowPriceMode, i);
//         slowMAprevious = TMA(SlowMA_Period, SlowPriceMode, i+1);
         break;
        }
        
        default :
        {
         slowMAnow = iMA(NULL, 0, SlowMA_Period, 0, SlowMA_Mode, SlowPriceMode, i);
         slowMAprevious = iMA(NULL, 0, SlowMA_Period, 0, SlowMA_Mode, SlowPriceMode, i+1);
        }
      }
      
      if ((fastMAnow > slowMAnow) && (fastMAprevious < slowMAprevious))
      {
         if (i == 1 && flagval1==0)
         {
           flagval1=1;
           flagval2=0;
           if (SoundON) Alert("BUY signal at Ask=",Ask,"\n Bid=",Bid,"\n Time=",TimeToStr(CurTime(),TIME_DATE)," ",TimeHour(CurTime()),":",TimeMinute(CurTime()),"\n Symbol=",Symbol()," Period=",Period());
           if (EmailON) SendMail("BUY signal alert","BUY signal at Ask="+DoubleToStr(Ask,4)+", Bid="+DoubleToStr(Bid,4)+", Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
         }
         CrossUp[i] = Low[i] - Range*0.75;
      }
      else if ((fastMAnow < slowMAnow) && (fastMAprevious > slowMAprevious))
      {
         if (i == 1 && flagval2==0)
         {
           flagval2=1;
           flagval1=0;
           if (SoundON) Alert("SELL signal at Ask=",Ask,"\n Bid=",Bid,"\n Date=",TimeToStr(CurTime(),TIME_DATE)," ",TimeHour(CurTime()),":",TimeMinute(CurTime()),"\n Symbol=",Symbol()," Period=",Period());
           if (EmailON) SendMail("SELL signal alert","SELL signal at Ask="+DoubleToStr(Ask,4)+", Bid="+DoubleToStr(Bid,4)+", Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
         }
         CrossDown[i] = High[i] + Range*0.75;
      }
   }

   return(0);
}





Sample





Analysis



Market Information Used:

Series array that contains close prices for each bar
Series array that contains open prices of each bar
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar


Indicator Curves created:

Implements a curve of type DRAW_ARROW


Indicators Used:


Moving average indicator


Custom Indicators Used:
TMA

Order Management characteristics:

Other Features:

It issuies visual alerts to the screen
It sends emails