//+------------------------------------------------------------------+
//| Heiken Ashi.mq4 |
//| Copyright c 2004, MetaQuotes Software Corp. |
//| http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net"
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Red
#property indicator_color2 Lime
#property indicator_color3 Blue
#property indicator_color4 Blue
#property indicator_width1 3
#property indicator_width2 3
#property indicator_width3 3
#property indicator_width4 3
extern int TimeFrame=0;
extern int EMA_Period=13;
extern int MACD_FastPeriod=12;
extern int MACD_SlowPeriod=26;
extern int MACD_SignalPeriod=9;
extern bool UseMT4MACD=false;
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
double MACDLineBuffer[];
double MACDSignalLineBuffer[];
double MACDHistogramBuffer[];
//----
int ExtCountedBars=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//|------------------------------------------------------------------|
int init()
{
IndicatorBuffers(7);
//---- indicators
SetIndexStyle(0,DRAW_HISTOGRAM, 0, 3);
SetIndexBuffer(0, ExtMapBuffer1);
SetIndexStyle(1,DRAW_HISTOGRAM, 0, 3);
SetIndexBuffer(1, ExtMapBuffer2);
SetIndexStyle(2,DRAW_HISTOGRAM, 0, 3);
SetIndexBuffer(2, ExtMapBuffer3);
SetIndexStyle(3,DRAW_HISTOGRAM, 0, 3);
SetIndexBuffer(3, ExtMapBuffer4);
//----
SetIndexDrawBegin(0,MACD_SlowPeriod);
SetIndexDrawBegin(1,MACD_SlowPeriod);
SetIndexDrawBegin(2,MACD_SlowPeriod);
SetIndexDrawBegin(3,MACD_SlowPeriod);
//---- indicator buffers mapping
SetIndexBuffer(0,ExtMapBuffer1);
SetIndexBuffer(1,ExtMapBuffer2);
SetIndexBuffer(2,ExtMapBuffer3);
SetIndexBuffer(3,ExtMapBuffer4);
SetIndexEmptyValue(4,0.0);
SetIndexBuffer(4,MACDSignalLineBuffer);
SetIndexEmptyValue(5,0.0);
SetIndexBuffer(5,MACDLineBuffer);
SetIndexEmptyValue(6,0.0);
SetIndexBuffer(6,MACDHistogramBuffer);
//---- initialization done
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//---- TODO: add your code here
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int limit,y=0,counted_bars=IndicatorCounted();
double ema1, main1, signal1, ema0, main0, signal0, macd1, macd0, main;
double alpha = 2.0 / (MACD_SignalPeriod + 1.0);
double alpha_1 = 1.0 - alpha;
double BarValue, aOpen, aClose;
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)
{
y = iBarShift(NULL,TimeFrame,Time[pos]);
ema0=iMA(NULL,TimeFrame,EMA_Period,0,MODE_EMA,PRICE_CLOSE,y);
ema1=iMA(NULL,TimeFrame,EMA_Period,0,MODE_EMA,PRICE_CLOSE,y+1);
if(UseMT4MACD)
{
main0=iMACD(NULL, TimeFrame, MACD_FastPeriod, MACD_SlowPeriod, MACD_SignalPeriod, PRICE_CLOSE,0,y);
main1=iMACD(NULL, TimeFrame, MACD_FastPeriod, MACD_SlowPeriod, MACD_SignalPeriod, PRICE_CLOSE,0,y+1);
signal0=iMACD(NULL, TimeFrame, MACD_FastPeriod, MACD_SlowPeriod, MACD_SignalPeriod, PRICE_CLOSE,1,y);
signal1=iMACD(NULL, TimeFrame, MACD_FastPeriod, MACD_SlowPeriod, MACD_SignalPeriod, PRICE_CLOSE,1,y+1);
main=main0;
macd0=main0-signal0;
macd1=main1-signal1;
} else
{
MACDLineBuffer[y] = iMA(NULL,TimeFrame,MACD_FastPeriod,0,MODE_EMA,PRICE_CLOSE,y)-
iMA(NULL,TimeFrame,MACD_SlowPeriod,0,MODE_EMA,PRICE_CLOSE,y);
MACDSignalLineBuffer[y]=(alpha*MACDLineBuffer[y]) + (alpha_1*MACDSignalLineBuffer[y+1]);
MACDHistogramBuffer[y]=MACDLineBuffer[y]-MACDSignalLineBuffer[y];
main=MACDLineBuffer[y];
macd0=MACDHistogramBuffer[y];
macd1=MACDHistogramBuffer[y+1];
}
aOpen=iOpen(NULL,TimeFrame,y);
aClose=iClose(NULL,TimeFrame,y);
if(ema0<ema1 && macd0<macd1) //both down - Red
{
if(aOpen<aClose)
{
ExtMapBuffer1[pos]=aClose;
ExtMapBuffer2[pos]=aOpen;
ExtMapBuffer3[pos]=EMPTY_VALUE;
ExtMapBuffer4[pos]=EMPTY_VALUE;
} else
{
ExtMapBuffer1[pos]=aOpen;
ExtMapBuffer2[pos]=aClose;
ExtMapBuffer3[pos]=EMPTY_VALUE;
ExtMapBuffer4[pos]=EMPTY_VALUE;
}
} else
if(ema0>ema1 && macd0>macd1) //both up - Lime
{
if(aOpen<aClose)
{
ExtMapBuffer1[pos]=aOpen;
ExtMapBuffer2[pos]=aClose;
ExtMapBuffer3[pos]=EMPTY_VALUE;
ExtMapBuffer4[pos]=EMPTY_VALUE;
} else
{
ExtMapBuffer1[pos]=aClose;
ExtMapBuffer2[pos]=aOpen;
ExtMapBuffer3[pos]=EMPTY_VALUE;
ExtMapBuffer4[pos]=EMPTY_VALUE;
}
} else //otherwise - Blue
{
ExtMapBuffer3[pos]=aOpen;
ExtMapBuffer4[pos]=aClose;
ExtMapBuffer1[pos]=EMPTY_VALUE;
ExtMapBuffer2[pos]=EMPTY_VALUE;
}
pos--;
}
//----
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains open time of each bar
Series array that contains open prices of each bar
Series array that contains close prices for each bar
Indicator Curves created:
Implements a curve of type DRAW_HISTOGRAM
Indicators Used:
Moving average indicator
MACD Histogram
Custom Indicators Used:
Order Management characteristics:
Other Features: