//+------------------------------------------------------------------+
//| BBwithFractdev.mq4 |
//| Êèì Èãîðü Â. aka KimIV |
//| http://www.kimiv.ru |
//| |
//| Ïîëîñû Áîëëèíäæåðà ñ äðîáíûì êîýôôèöèåíòîì îòêëîíåíèÿ |
//+------------------------------------------------------------------+
#property copyright "Êèì Èãîðü Â. aka KimIV"
#property link "http://www.kimiv.ru"
//----
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Green
#property indicator_color2 Blue
#property indicator_color3 Green
//---- input parameters
extern int BB_Period=13; // Ïåðèîä ñðåäíåé è îòêëîíåíèÿ
extern double Deviation=2.618; // Êîýôôèöèåíò îòêëîíåíèÿ
//---- indicator buffers
double buf1[];
double buf2[];
double buf3[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
void init()
{
SetIndexStyle(0, DRAW_LINE);
SetIndexStyle(1, DRAW_LINE);
SetIndexStyle(2, DRAW_LINE);
IndicatorDigits(MarketInfo(Symbol(), MODE_DIGITS));
//----
SetIndexBuffer(0, buf1);
SetIndexBuffer(1, buf2);
SetIndexBuffer(2, buf3);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
void start()
{
int i, j;
double ave, sko, sum;
if (Bars<=BB_Period) return;
for(i=Bars-BB_Period; i>=0; i--)
{
buf2[i]=iMA(NULL,0,BB_Period,0,MODE_SMA,PRICE_CLOSE,i);
sum=0;
for(j=0; j<BB_Period; j++) sum+=Close[i+j];
ave=sum/BB_Period;
sum=0;
for(j=0; j<BB_Period; j++) sum+=(Close[i+j]-ave)*(Close[i+j]-ave);
sko=MathSqrt(sum/BB_Period);
buf1[i]=buf2[i]+(Deviation*sko);
buf3[i]=buf2[i]-(Deviation*sko);
}
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains close prices for 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: