//+------------------------------------------------------------------+
//| 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 = 3;
//---- 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,0,1);
SetIndexStyle(1,DRAW_HISTOGRAM,0,1);
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])
{
val1[pos]=Low[pos]; val2[pos]=High[pos];
}
if (ExtMapBuffer4[pos]<ExtMapBuffer3[pos])
{
val1[pos]=High[pos]; val2[pos]=Low[pos];
}
pos--;
}
//----
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
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: