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Индикатор PriceChannel
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[ Скачать с сервера (3.1 Kb)
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| 20.10.2010, 22:48 |
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 DodgerBlue
#property indicator_color2 FireBrick
#property indicator_color3 Goldenrod
//---- input parameters
extern int HighPeriod=20;
extern int LowPeriod=20;
extern int Shift=0;
//---- buffers
double UpBuffer[];
double DnBuffer[];
double MdBuffer[];
double Up[],Dn[],Md[];
ArraySetAsSeries(Up,true);
ArraySetAsSeries(Dn,true);
ArraySetAsSeries(Md,true);
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- indicator line
SetIndexStyle(0,DRAW_LINE);
SetIndexStyle(1,DRAW_LINE);
SetIndexStyle(2,DRAW_LINE,2);
SetIndexBuffer(0,UpBuffer);
SetIndexBuffer(1,DnBuffer);
SetIndexBuffer(2,MdBuffer);
//---- name for DataWindow and indicator subwindow label
short_name="Price Channel("+HighPeriod+","+LowPeriod+")";
IndicatorShortName(short_name);
SetIndexLabel(0,"Up Channel");
SetIndexLabel(1,"Down Channel");
SetIndexLabel(2,"Middle Channel");
//----
SetIndexDrawBegin(0,HighPeriod+Shift);
SetIndexDrawBegin(1,LowPeriod+Shift);
SetIndexDrawBegin(2,(HighPeriod-LowPeriod)/2+Shift);
SetIndexEmptyValue(0,0);
SetIndexEmptyValue(1,0);
SetIndexEmptyValue(2,0);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Price Channel |
//+------------------------------------------------------------------+
int start()
{
int i,counted_bars=IndicatorCounted();
int k;
double high,low,price;
//----
if(Bars<=MathMax(HighPeriod,LowPeriod)) return(0);
//---- initial zero
if(counted_bars<1)
for(i=1;i<=MathMax(HighPeriod,LowPeriod);i++) //UpBuffer[Bars-i]=0.0;
ArrayResize(Up, Bars);
ArrayResize(Dn, Bars);
ArrayResize(Md, Bars);
//----
i=Bars-MathMax(HighPeriod,LowPeriod)-1;
if(counted_bars>=MathMax(HighPeriod,LowPeriod)) i=Bars-counted_bars;
while(i>=0)
{
high=High[i]; low=Low[i]; k=i-1+MathMax(HighPeriod,LowPeriod);
high=iHigh(NULL,0,iHighest(NULL,0,MODE_HIGH,HighPeriod,i+Shift));
low=iLow(NULL,0,iLowest(NULL,0,MODE_LOW,LowPeriod,i+Shift));
Up[i]=high;
Dn[i]=low;
Md[i]=(high+low)/2;
UpBuffer[i]=Up[i+Shift];
DnBuffer[i]=Dn[i+Shift];
MdBuffer[i]=Md[i+Shift];
i--;
}
return(0);
}
//+------------------------------------------------------------------+
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Категория: Мои файлы | Добавил: fxpart
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