Keltnerovi kanály

Keltnerovi kanály jsou modifikací známého indikátoru Bollinger BandsKeltner Channels nepracuje jen s průměrem uzavírací ceny, ale s průměrem závěrečných, nejvyšších a nejnižších cen na bázi indikátoru ATR (Average True Range).

 

Kód do MT4:

//+——————————————————————+
//|                                             Keltner Channels.mq4 |
//|                                                  Coded by Gilani |
//|                      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 White
#property indicator_color2 White
#property indicator_color3 White
double upper[], middle[], lower[];
extern int period = 10;
int init()
{
SetIndexStyle(0,DRAW_LINE);
SetIndexShift(0,0);
SetIndexDrawBegin(0,0);
SetIndexBuffer(0,upper);

SetIndexStyle(1,DRAW_LINE);
SetIndexShift(1,0);
SetIndexDrawBegin(1,0);
SetIndexBuffer(1,middle);

SetIndexStyle(2,DRAW_LINE);
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; br=““>       middle[x] = iMA(NULL, 0, period, 0, MODE_SMA, PRICE_TYPICAL, x);
avg  = findAvg(period, x);
upper[x] = middle[x] + avg;
lower[x] = middle[x] – 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);
}

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