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What's wrong with this moving average alert?
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Old 03-25-2006, 12:58 AM
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Thumbs up What's wrong with this moving average alert?

whats wrong with this moveing average alert?

PHP Code:
//+------------------------------------------------------------------+
//|                                            maAlert.mq4 |
//|                                      Copyright © 2006, Keris2112 |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Keris2112"
#property link      "http://www.forex-tsd.com"

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Blue


//---- input parameters
/*************************************************************************
PERIOD_M1   1
PERIOD_M5   5
PERIOD_M15  15
PERIOD_M30  30 
PERIOD_H1   60
PERIOD_H4   240
PERIOD_D1   1440
PERIOD_W1   10080
PERIOD_MN1  43200
You must use the numeric value of the timeframe that you want to use
when you set the TimeFrame' value with the indicator inputs.
---------------------------------------
PRICE_CLOSE    0 Close price. 
PRICE_OPEN     1 Open price. 
PRICE_HIGH     2 High price. 
PRICE_LOW      3 Low price. 
PRICE_MEDIAN   4 Median price, (high+low)/2. 
PRICE_TYPICAL  5 Typical price, (high+low+close)/3. 
PRICE_WEIGHTED 6 Weighted close price, (high+low+close+close)/4. 
You must use the numeric value of the Applied Price that you want to use
when you set the 'applied_price' value with the indicator inputs.
---------------------------------------
MODE_SMA    0 Simple moving average, 
MODE_EMA    1 Exponential moving average, 
MODE_SMMA   2 Smoothed moving average, 
MODE_LWMA   3 Linear weighted moving average. 
You must use the numeric value of the MA Method that you want to use
when you set the 'ma_method' value with the indicator inputs.

**************************************************************************/
extern int TimeFrame=0;
extern int MAPeriod=13;
extern int ma_shift=0;
extern int ma_method=MODE_SMA;
extern int applied_price=PRICE_CLOSE;
string short_name;

double ExtMapBuffer1[];
double ExtMapBuffer2[];

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

bool Crossed (double line1 double line2 )
{

static 
string last_direction "";
string current_dirction "";

if(
line1>line2)current_dirction "up";
if(
line1<=line2)current_dirction "down";



if(
current_dirction != last_direction
{
      
Alert("EMA Cross for "+Symbol()+" on the "+Period()+" minute chart.");
      
last_direction current_dirction;
      return (
true);
}
else
{
      return (
false);

}
 




int start()
  {
   
int    counted_bars=IndicatorCounted();
   
     
string MTF_EMA
     string MTF_LWMA
 
//---- check for possible errors
   
if (counted_bars<0) return(-1);
//---- last counted bar will be recounted
   
if (counted_bars>0counted_bars--;
   
   
int pos=Bars-counted_bars;
   
     
 
   while(
pos>=0)
     {
     
     
         
ExtMapBuffer1[pos]= iMA(NULL,0,MTF_EMA,0,MODE_EMA,PRICE_CLOSE,pos);

         
ExtMapBuffer2[pos]= iMA(NULL,0,MTF_LWMA,0,MODE_LWMA,PRICE_CLOSE,pos);

         
         
pos--;
     }
     
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   
string short_name;
//---- indicator line
   
SetIndexBuffer(0,ExtMapBuffer1);
   
SetIndexStyle(0,DRAW_LINE);
   
   
   
 
//---- name for DataWindow and indicator subwindow label   
   
switch(ma_method)
     {
      case 
short_name="MTF_EMA("; break;
      case 
short_name="MTF_SMMA("; break;
      case 
short_name="MTF_LWMA("; break;
      default : 
short_name="MTF_SMA(";
     }
   switch(
TimeFrame)
   {
      case 
string TimeFrameStr="Period_M1"; break;
      case 
TimeFrameStr="Period_M5"; break;
      case 
15 TimeFrameStr="Period_M15"; break;
      case 
30 TimeFrameStr="Period_M30"; break;
      case 
60 TimeFrameStr="Period_H1"; break;
      case 
240 TimeFrameStr="Period_H4"; break;
      case 
1440 TimeFrameStr="Period_D1"; break;
      case 
10080 TimeFrameStr="Period_W1"; break;
      case 
43200 TimeFrameStr="Period_MN1"; break;
      default : 
TimeFrameStr="Current Timeframe";
   } 
   
IndicatorShortName(short_name+MAPeriod+") "+TimeFrameStr);  
  }
  
  
//----
   
return(0);
 
//+------------------------------------------------------------------+
//| MTF Moving Average                                   |
//+------------------------------------------------------------------+
int start()
  {
   
datetime TimeArray[];
   
int    i,shift,limit,y=0,counted_bars=IndicatorCounted();
   
   
   
      
// Plot defined timeframe on to current timeframe   
   
ArrayCopySeries(TimeArray,MODE_TIME,Symbol(),TimeFrame); 
   
   
limit=Bars-counted_bars;
   for(
i=0,y=0;i<limit;i++)
   {
   if (
Time[i]<TimeArray[y]) y++; 
   
 
/***********************************************************   
   Add your main indicator loop below.  You can reference an existing
      indicator with its iName  or iCustom.
   Rule 1:  Add extern inputs above for all neccesary values   
   Rule 2:  Use 'TimeFrame' for the indicator timeframe
   Rule 3:  Use 'y' for the indicator's shift value
 **********************************************************/  
    
   
ExtMapBuffer1[i]=iMA(NULL,TimeFrame,MAPeriod,ma_shift,ma_method,applied_price,y) ; 
   
   }
   
     
  Print(
Crossed (ExtMapBuffer1[0],ExtMapBuffer2[0]));


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

Last edited by scorpion : 03-25-2006 at 10:26 PM.
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