//+------------------------------------------------------------------+
//| Bandwidth Indicator.mq4
//| Copyright © 2007, Fxid10t@yahoo.com
//| http://www.fxstreet.com/education/technical/identifying-budding-trends-with-bollinger-bands/2006-06-14.html
//+------------------------------------------------------------------+
#property copyright "Copyright © 2007, Fxid10t@yahoo.com"
#property link "http://www.fxstreet.com/education/technical/identifying-budding-trends-with-bollinger-bands/2006-06-14.html"
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Red
//---- input parameters
extern int chart.timeframe=0;
extern int period=20;
extern int deviation=2;
extern int bands.shift=0;
extern int applied.price=0;
double BWI,ub,lb,mb;
//---- indicator buffers
double BWI.Buffer[];
int init() {
IndicatorBuffers(1);
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0, BWI.Buffer);
IndicatorShortName("BWI");
SetIndexDrawBegin(0,period);
SetIndexLabel(0,"BWI");
return(0); }
int deinit() {return(0);}
int start() {
int limit;
int counted_bars=IndicatorCounted();
//---- check for possible errors
if(counted_bars<0) return(-1);
//---- the last counted bar will be recounted
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
//---- main loop
for(int i=0; i<limit; i++) {
ub=iBands(Symbol(),chart.timeframe,period,deviation,bands.shift,applied.price,1,i);
lb=iBands(Symbol(),chart.timeframe,period,deviation,bands.shift,applied.price,2,i);
mb=iBands(Symbol(),chart.timeframe,period,deviation,bands.shift,applied.price,0,i);
Print(ub,lb,mb);
BWI.Buffer[i]=((ub-lb)/mb)*100;}
return(0);}
Sample
Analysis
Market Information Used:
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Bollinger bands indicator
Custom Indicators Used:
Order Management characteristics:
Other Features: