icustom Keltner_Channel Bands
Ruptor:
Works beautifully, thanks.
BB
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I'm trying to take the Keltner_Channel strategy below and utilize its bands in an EA but I'm having trouble with being able to reference the individual bands (like you can do with the bollinger bands) in mql4. So far I've tried, " KeltnerP =iCustom(NULL, 0,"Keltner_Channel",0,0,0); without much luck. For B bands you can just use the 6th parameter (applied_price) to reference high or low band (below), no such luck with custom indicators. Any ideas?
STDU =iBands(NULL,0,14,2,0,0,1,0);
#property copyright "Copyright © 2005, MetaQuotes Software Corp."
#property link "https://www.metaquotes.net/"
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Red
#property indicator_color2 Blue
#property indicator_color3 Red
//---- input parameters
extern int period = 10;
//----
double upper[], middle[], lower[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
SetIndexBuffer(0, upper);
SetIndexStyle(0, DRAW_LINE);
SetIndexShift(0, 0);
SetIndexDrawBegin(0, 0);
//----
SetIndexBuffer(1, middle);
SetIndexStyle(1, DRAW_LINE, STYLE_DASHDOT);
SetIndexShift(1, 0);
SetIndexDrawBegin(1, 0);
//----
SetIndexBuffer(2, lower);
SetIndexStyle(2, DRAW_LINE);
SetIndexShift(2, 0);
SetIndexDrawBegin(2, 0);
//---- name for DataWindow label
SetIndexLabel(0, "KChanUp(" + period + ")");
SetIndexLabel(1, "KChanMid(" + period + ")");
SetIndexLabel(2, "KChanLow(" + period + ")");
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int limit;
double avg;
int counted_bars = IndicatorCounted();
if(counted_bars < 0)
return(-1);
if(counted_bars > 0)
counted_bars--;
limit = Bars - counted_bars;
//----
for(int x = 0; x < limit; x++)
{
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);