//+------------------------------------------------------------------+
//| %BB.mq4 |
//| Copyright ? 2008, Walter Choy |
//| |
//+------------------------------------------------------------------+
#property copyright "Copyright ? 2008, Walter Choy"
#property link ""
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Red
#property indicator_level1 0
#property indicator_level2 50
#property indicator_level3 100
extern int Bands_period = 20;
extern double Bands_deviation = 2;
//---- buffers
double PercentBB[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0, DRAW_LINE);
SetIndexBuffer(0, PercentBB);
SetIndexLabel(0, "%BB");
SetIndexDrawBegin(0, Bands_period);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int counted_bars = IndicatorCounted();
//----
double LB, UB;
int limit;
if(counted_bars > 0) counted_bars--;
limit = Bars - counted_bars - 1;
for(int i = 0; i < limit; i++){
LB = iBands(NULL, 0, Bands_period, Bands_deviation, 0, PRICE_CLOSE, MODE_LOWER, i);
UB = iBands(NULL, 0, Bands_period, Bands_deviation, 0, PRICE_CLOSE, MODE_UPPER, i);
PercentBB[i] = (iClose(NULL, 0, i) - LB)/(UB - LB) * 100;
}
//----
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains close prices for each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Bollinger bands indicator
Custom Indicators Used:
Order Management characteristics:
Other Features: