//+------------------------------------------------------------------+
//| Heiken Ashi Ma.mq4 |
//+------------------------------------------------------------------+
//| mod by Raff |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Forex-TSD.com "
#property link "http://www.forex-tsd.com/"
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Red
#property indicator_color2 RoyalBlue
//---- parameters
extern int MaMetod = 1;
extern int MaPeriod = 13;
//---- buffers
double val1[];
double val2[];
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
//----
int ExtCountedBars=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//|------------------------------------------------------------------|
int init()
{
//---- indicators
IndicatorBuffers(6);
SetIndexStyle(0,DRAW_HISTOGRAM,0,3);
SetIndexStyle(1,DRAW_HISTOGRAM,0,3);
SetIndexBuffer(0,val1);
SetIndexBuffer(1,val2);
//----
SetIndexDrawBegin(0,5);
SetIndexDrawBegin(1,5);
//---- indicator buffers mapping
SetIndexBuffer(2,ExtMapBuffer1);
SetIndexBuffer(3,ExtMapBuffer2);
SetIndexBuffer(4,ExtMapBuffer3);
SetIndexBuffer(5,ExtMapBuffer4);
//---- initialization done
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//---- TODO: add your code here
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
double maOpen, maClose, maLow, maHigh;
double haOpen, haHigh, haLow, haClose;
if(Bars<=10) return(0);
ExtCountedBars=IndicatorCounted();
//---- check for possible errors
if (ExtCountedBars<0) return(-1);
//---- last counted bar will be recounted
if (ExtCountedBars>0) ExtCountedBars--;
int pos=Bars-ExtCountedBars-1;
while(pos>=0)
{
maOpen=iMA(NULL,0,MaPeriod,0,MaMetod,MODE_OPEN,pos);
maClose=iMA(NULL,0,MaPeriod,0,MaMetod,MODE_CLOSE,pos);
maLow=iMA(NULL,0,MaPeriod,0,MaMetod,MODE_LOW,pos+1);
maHigh=iMA(NULL,0,MaPeriod,0,MaMetod,MODE_HIGH,pos+1);
haOpen=(ExtMapBuffer3[pos+1]+ExtMapBuffer4[pos+1])/2;
haClose=(maOpen+maHigh+maLow+maClose)/4;
haHigh=MathMax(maHigh, MathMax(haOpen, haClose));
haLow=MathMin(maLow, MathMin(haOpen, haClose));
if (haOpen<haClose)
{
ExtMapBuffer1[pos]=haLow;
ExtMapBuffer2[pos]=haHigh;
}
else
{
ExtMapBuffer1[pos]=haHigh;
ExtMapBuffer2[pos]=haLow;
}
ExtMapBuffer3[pos]=haOpen;
ExtMapBuffer4[pos]=haClose;
if (ExtMapBuffer3[pos]<ExtMapBuffer4[pos] && Close[pos]>ExtMapBuffer3[pos])
{
val1[pos]=Low[pos]; val2[pos]=High[pos];
}
if (ExtMapBuffer4[pos]<ExtMapBuffer3[pos] && Close[pos]<ExtMapBuffer4[pos])
{
val1[pos]=High[pos]; val2[pos]=Low[pos];
}
pos--;
}
//----
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains close prices for 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_HISTOGRAM
Indicators Used:
Moving average indicator
Custom Indicators Used:
Order Management characteristics:
Other Features: