//+------------------------------------------------------------------+
//| to_ind_Better_Bollinger_Bands.mq4 |
//| * |
//| * |
//+------------------------------------------------------------------+
#property copyright "http://dmffx.com"
#property link "http://dmffx.com"
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Red
#property indicator_color2 Red
#property indicator_color3 Red
//---- input parameters
extern int Periods=20;
extern double Devs=2;
extern int Price=1;
//---- buffers
double mt[];
double ut[];
double mt2[];
double ut2[];
double but[];
double blt[];
double bct[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
IndicatorBuffers(7);
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,but);
SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer(1,blt);
SetIndexStyle(2,DRAW_LINE);
SetIndexBuffer(2,bct);
SetIndexBuffer(3,mt);
SetIndexBuffer(4,ut);
SetIndexBuffer(5,mt2);
SetIndexBuffer(6,ut2);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int limit=Bars-IndicatorCounted()-1;
double alpha=2.0/(Periods+1);
for(int i=limit;i>=0;i--){
mt[i]=alpha*iMA(NULL,0,1,0,0,Price,i)+(1-alpha)*mt[i+1];
ut[i]=alpha*mt[i]+(1-alpha)*ut[i+1];
double dt=((2-alpha)*mt[i]-ut[i])/(1-alpha);
mt2[i]=alpha*MathAbs(iMA(NULL,0,1,0,0,Price,i)-dt)+(1-alpha)*mt2[i+1];
ut2[i]=alpha*mt2[i]+(1-alpha)*ut2[i+1];
double dt2=((2-alpha)*mt2[i]-ut2[i])/(1-alpha);
but[i]=dt+Devs*dt2;
blt[i]=dt-Devs*dt2;
bct[i]=dt;
}
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Moving average indicator
Custom Indicators Used:
Order Management characteristics:
Other Features: