//+------------------------------------------------------------------+
//| Instantaneous Trendline Filter|
//| Copyright © 2006, Luis Guilherme Damiani |
//| http://www.damianifx.com.br |
//|
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Luis Guilherme Damiani"
#property link "http://www.damianifx.com.br"
//----
#property indicator_buffers 2
#property indicator_chart_window
#property indicator_color1 Lime
#property indicator_color2 Red
//---- input parameters
extern double alpha=0.07;
extern int maxbars=2000;
extern string
Price_Choice="----- Typical or Median --------------";
extern bool is_median=true;
//---- buffers
double ind1[];
double ind2[];
//double AuxBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,ind1);
SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer(1,ind2);
// SetIndexStyle(2,DRAW_LINE);
// SetIndexBuffer(2,AuxBuffer);
// SetLevelValue(0,0.8);
// SetLevelValue(1,-0.8);
// ArrayInitialize(ind1,0);
// ArrayInitialize(ind2,0);
// ArrayInitialize(AuxBuffer,0);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
double pr0,pr1,pr2=0;
int counted_bars=IndicatorCounted();
//double Normalized=0;
//double Fish=0;
//---- check for possible errors
if(counted_bars<0) return(-1);
int limit=Bars-counted_bars;
if(limit>maxbars)limit=maxbars;
//if (limit>Bars-1)limit=Bars-1;
//----
for(int i=limit; i>=0;i--)
{
if(is_median)
{
pr0=(High[i]+Low[i])/2;
pr1=(High[i+1]+Low[i+1])/2;
pr2=(High[i+2]+Low[i+2])/2;
}
else
{
pr0=(High[i]+Low[i]+Close[i])/3;
pr1=(High[i+1]+Low[i+1]+Close[i+1])/3;
pr2=(High[i+2]+Low[i+2]+Close[i+2])/3;
}
ind1[i]=(alpha-MathPow(alpha/2,2))*pr0
+(MathPow(alpha,2)/2)*pr1
-(alpha-3*MathPow(alpha,2)/4)*pr2
+ 2*(1-alpha)*ind1[i+1]
-MathPow(1-alpha,2)*ind1[i+2];
ind2[i]=2*ind1[i]-ind1[i+2];
}
//----
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar
Series array that contains close prices for each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features: