//+------------------------------------------------------------------+
//| Chande_Kroll_Stop_v1.mq4 |
//| Copyright © 2006, Forex-TSD.com |
//| Written by IgorAD,igorad2003@yahoo.co.uk |
//| http://finance.groups.yahoo.com/group/TrendLaboratory |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Forex-TSD.com "
#property link "http://www.forex-tsd.com/"
//----
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Red
#property indicator_color2 Lime
//---- input parameters
extern int Length =80;
extern int ATRPeriod =10;
extern double Kv =3;
//---- indicator buffers
double UpTrend[];
double DnTrend[];
double smin[];
double smax[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- indicator line
SetIndexStyle(0,DRAW_LINE);
SetIndexStyle(1,DRAW_LINE);
IndicatorBuffers(4);
SetIndexBuffer(0,UpTrend);
SetIndexBuffer(1,DnTrend);
SetIndexBuffer(2,smin);
SetIndexBuffer(3,smax);
//---- name for DataWindow and indicator subwindow label
short_name="Chande Kroll Stop("+Length+","+ATRPeriod+","+Kv+")";
IndicatorShortName(short_name);
SetIndexLabel(0,"UpTrend");
SetIndexLabel(1,"DnTrend");
//----
SetIndexDrawBegin(0,Length);
SetIndexDrawBegin(1,Length);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Chande_Kroll_Stop_v1 |
//+------------------------------------------------------------------+
int start()
{
int shift,limit, counted_bars=IndicatorCounted();
//----
if(counted_bars > 0) limit=Bars-counted_bars;
if(counted_bars < 0) return(0);
if(counted_bars ==0) limit=Bars-Length-1;
//----
for(shift=limit;shift>=0;shift--)
{
smin[shift]=High[Highest(NULL,0,MODE_HIGH,ATRPeriod,shift)] - Kv*iATR(NULL,0,ATRPeriod,shift);
smax[shift]=Low [Lowest (NULL,0,MODE_LOW ,ATRPeriod,shift)] + Kv*iATR(NULL,0,ATRPeriod,shift);
//
UpTrend[shift]=-10000000;
DnTrend[shift]= 10000000;
//----
for(int i=Length-1;i>=0;i--)
{
UpTrend[shift]=MathMax( UpTrend[shift], smin[shift+i]);
DnTrend[shift]=MathMin( DnTrend[shift], smax[shift+i]);
}
}
return(0);
}
//+------------------------------------------------------------------+