//+------------------------------------------------------------------+
//| ATR_Bands.mq4 |
//| ATR Bands are self-adjusting enveloppes, based on the volatility |
//| Based on BB indicator, modified by kris.pivo[at]gmail.com |
//+------------------------------------------------------------------+
#property copyright "© 2008, Kris"
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 C'150,150,150'
#property indicator_color2 C'080,080,080'
#property indicator_color3 C'080,080,080'
//---- indicator parameters
extern int Bands_Period = 21;
extern int Bands_Shift = 0;
extern int ATR_Period = 14;
extern double ATR_Multiplier = 1.5;
//---- buffers
double MovingBuffer[];
double UpperBuffer[];
double LowerBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle( 0,DRAW_LINE,STYLE_SOLID,2,indicator_color1);
SetIndexBuffer(0,MovingBuffer);
SetIndexStyle( 1,DRAW_LINE,STYLE_DOT, 1,indicator_color2);
SetIndexBuffer(1,UpperBuffer);
SetIndexStyle( 2,DRAW_LINE,STYLE_DOT, 1,indicator_color3);
SetIndexBuffer(2,LowerBuffer);
//----
SetIndexDrawBegin(0,Bands_Period+Bands_Shift);
SetIndexDrawBegin(1,Bands_Period+Bands_Shift);
SetIndexDrawBegin(2,Bands_Period+Bands_Shift);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Bollinger Bands |
//+------------------------------------------------------------------+
int start()
{
int i,k,counted_bars=IndicatorCounted();
double TrueRange;
double sum,oldval,newres;
//----
if(Bars<=Bands_Period) return(0);
//---- initial zero
if(counted_bars<1)
for(i=1;i<=Bands_Period;i++)
{
MovingBuffer[Bars-i]=EMPTY_VALUE;
UpperBuffer[Bars-i]=EMPTY_VALUE;
LowerBuffer[Bars-i]=EMPTY_VALUE;
}
//----
int limit=Bars-counted_bars;
if(counted_bars>0) limit++;
for(i=0; i<limit; i++)
MovingBuffer[i]=iMA(NULL,0,Bands_Period,Bands_Shift,MODE_EMA,PRICE_CLOSE,i);
//----
i=Bars-Bands_Period+1;
if(counted_bars>Bands_Period-1) i=Bars-counted_bars-1;
while(i>=0)
{
sum=0.0;
k=i+Bands_Period-1;
oldval=MovingBuffer[i];
TrueRange=ATR_Multiplier*iATR(NULL,0,ATR_Period,Bands_Shift);
UpperBuffer[i]=oldval+TrueRange;
LowerBuffer[i]=oldval-TrueRange;
i--;
}
//----
return(0);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
// THE END |
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
Sample
Analysis
Market Information Used:
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Moving average indicator
Indicator of the average true range
Custom Indicators Used:
Order Management characteristics:
Other Features: