//+-------------------------------------------------------------------+
//| Bandswidth.mq4 |
//| by Linuxser for Forex TSD |
//| |
//| John Bollinger original formula is: |
//| (Upper BB - Lower BB)/middle BB |
//+-------------------------------------------------------------------+
#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net/"
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 RoyalBlue
#property indicator_width1 2
#property indicator_level1 0.0008
//---- input parameters
extern int BBPeriod=20;
extern int StdDeviation=2;
//---- buffers
double BLGBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- indicator line
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,BLGBuffer);
//---- name for DataWindow and indicator subwindow label
short_name="Bandswidth("+BBPeriod+","+StdDeviation+")";
IndicatorShortName(short_name);
SetIndexLabel(0,short_name);
//----
SetIndexDrawBegin(0,BBPeriod);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Momentum |
//+------------------------------------------------------------------+
int start()
{
int i,counted_bars=IndicatorCounted();
//----
if(Bars<=BBPeriod) return(0);
//---- initial zero
if(counted_bars<1)
for(i=1;i<=BBPeriod;i++) BLGBuffer[Bars-i]=0.0;
//----
i=Bars-BBPeriod-1;
if(counted_bars>=BBPeriod) i=Bars-counted_bars-1;
while(i>=0)
{
BLGBuffer[i]= (iBands(NULL,0,BBPeriod,StdDeviation,0,PRICE_CLOSE,MODE_UPPER,i) - iBands(NULL,0,BBPeriod,StdDeviation,0,PRICE_CLOSE,MODE_LOWER,i))
/iMA(NULL,0,BBPeriod,0,MODE_SMA,PRICE_CLOSE,i);
i--;
}
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Bollinger bands indicator
Moving average indicator
Custom Indicators Used:
Order Management characteristics:
Other Features: