//+------------------------------------------------------------------+
//| R-Squared_v1.mq4 |
//| Copyright © 2006, TrendLaboratory |
//| http://finance.groups.yahoo.com/group/TrendLaboratory |
//| E-mail: igorad2003@yahoo.co.uk |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, TrendLaboratory"
#property link "http://finance.groups.yahoo.com/group/TrendLaboratory"
#property indicator_separate_window
#property indicator_buffers 2
#property indicator_color1 SkyBlue
#property indicator_color2 Tomato
#property indicator_width1 2
#property indicator_width2 1
#property indicator_minimum -1
#property indicator_maximum 101
//---- input parameters
extern int Price = 0; //Apply to Price(0-Close;1-Open;2-High;3-Low;4-Median price;5-Typical price;6-Weighted Close)
extern int Length = 14; //Period of indicator
extern int Smooth = 14; //Period of smoothing
//---- indicator buffers
double RSquared[];
double Smoothed[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,RSquared);
SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer(1,Smoothed);
string short_name;
//---- indicator line
IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS));
//---- name for DataWindow and indicator subwindow label
short_name="R-Squared("+Length+")";
IndicatorShortName(short_name);
SetIndexLabel(0,"R-Squared");
SetIndexLabel(1,"Smoothed");
//----
SetIndexDrawBegin(0,Length+Smooth);
SetIndexDrawBegin(1,Length+Smooth);
//----
return(0);
}
//+------------------------------------------------------------------+
//| R-Squared_v1 |
//+------------------------------------------------------------------+
int start()
{
int i,shift, counted_bars=IndicatorCounted(),limit;
double price;
if ( counted_bars > 0 ) limit=Bars-counted_bars;
if ( counted_bars < 0 ) return(0);
if ( counted_bars ==0 ) limit=Bars-Length-1;
if ( counted_bars < 1 )
for(i=1;i<Length;i++) {RSquared[Bars-i]=0;Smoothed[Bars-i]=0;}
double SumX = 0;
for(i=0;i<=Length-1;i++) SumX += i+1;
double SumX2 = 0;
for(i=0;i<=Length-1;i++) SumX2 += (i+1)*(i+1);
for(shift=limit;shift>=0;shift--)
{
double SumY = 0;
for(i=0;i<=Length-1;i++) SumY += iMA(NULL,0,1,0,1,Price,i+shift);
double SumY2 = 0;
for(i=0;i<=Length-1;i++) SumY2 += MathPow(iMA(NULL,0,1,0,1,Price,i+shift),2);
double SumXY = 0;
for(i=0;i<=Length-1;i++) SumXY += (i+1)*iMA(NULL,0,1,0,1,Price,i+shift);
double Q1 = SumXY - SumX*SumY/Length;
double Q2 = SumX2 - SumX*SumX/Length;
double Q3 = SumY2 - SumY*SumY/Length;
if( Q2*Q3 != 0 )
RSquared[shift] = 100*Q1*Q1/(Q2*Q3);
else
RSquared[shift] = 0;
double SumR = 0;
for(i=0;i<=Smooth-1;i++) SumR += RSquared[shift+i];
Smoothed[shift]=SumR/Smooth;
}
//----
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: