//+------------------------------------------------------------------+
//| Trend Bands.mq4 |
//| Dwt5 and adoleh2000 |
//| Copyright © 2005, MetaQuotes Software Corp. |
//| http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net"
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Yellow
#property indicator_color2 Magenta
#property indicator_color3 Yellow
double upper[], middle1[], middle2, lower[];
extern int period = 34;
int init()
{
SetIndexStyle(0,DRAW_LINE,EMPTY,2);
SetIndexShift(0,0);
SetIndexDrawBegin(0,0);
SetIndexBuffer(0,upper);
SetIndexStyle(1,DRAW_LINE,EMPTY,3);
SetIndexShift(1,0);
SetIndexDrawBegin(1,0);
SetIndexBuffer(1,middle1);
SetIndexStyle(2,DRAW_LINE,EMPTY,2);
SetIndexShift(2,0);
SetIndexDrawBegin(2,0);
SetIndexBuffer(2,lower);
//---- indicators
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//---- TODO: add your code here
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start() {
int limit;
int counted_bars=IndicatorCounted();
if(counted_bars<0) return(-1);
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
double avg;
for(int x=0; x<limit; x++) {
middle1[x] = iMA(NULL, 0, period, 0, MODE_EMA, PRICE_TYPICAL, x);// drawn line
middle2= iMA(NULL, 0, period, 0, MODE_SMA, PRICE_TYPICAL, x);// only used to calculate outer bands
avg = findAvg(period, x);
upper[x] = middle2 + (3.5*avg);
lower[x] = middle2 - (3.5*avg);
}
return(0);
}
//+------------------------------------------------------------------+
double findAvg(int period, int shift) {
double sum=0;
for (int x=shift;x<(shift+period);x++) {
sum += High[x]-Low[x];
}
sum = sum/period;
return (sum);
}
Sample
Analysis
Market Information Used:
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Moving average indicator
Custom Indicators Used:
Order Management characteristics:
Other Features: