//+------------------------------------------------------------------+
//| bbsqueeze.mq4 |
//| Copyright © 2005, Nick Bilak, beluck[AT]gmail.com |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, Nick Bilak"
#property link "http://metatrader.50webs.com/"
#property indicator_separate_window
#property indicator_buffers 6
#property indicator_color1 Blue
#property indicator_color2 Red
#property indicator_color3 DarkSlateBlue
#property indicator_color4 FireBrick
#property indicator_color5 LawnGreen
#property indicator_color6 MediumOrchid
//---- input parameters
extern int totalBars=400;
extern int bolPrd=20;
extern double bolDev=2.0;
extern int keltPrd=20;
extern double keltFactor=1.5;
extern int momPrd=12;
extern bool alertBox=false;
extern bool audioAlert=false;
//---- buffers
double upB[];
double loB[];
double upK[];
double loK[];
double upB2[];
double loB2[];
int i,j,slippage=3;
double breakpoint=0.0;
double ema=0.0;
int peakf=0;
int peaks=0;
int valleyf=0;
int valleys=0, limit=0;
double ccis[61],ccif[61];
double delta=0;
double ugol=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0,DRAW_HISTOGRAM,0,2);
SetIndexBuffer(0,upB);
SetIndexEmptyValue(0,0);
SetIndexStyle(1,DRAW_HISTOGRAM,0,2);
SetIndexBuffer(1,loB);
SetIndexEmptyValue(1,0);
SetIndexStyle(4,DRAW_ARROW);
SetIndexBuffer(4,upK);
SetIndexEmptyValue(42,0);
SetIndexArrow(4,159);
SetIndexStyle(5,DRAW_ARROW);
SetIndexBuffer(5,loK);
SetIndexEmptyValue(5,EMPTY_VALUE);
SetIndexArrow(5,159);
SetIndexStyle(2,DRAW_HISTOGRAM,0,2);
SetIndexBuffer(2,upB2);
SetIndexEmptyValue(2,0);
SetIndexStyle(3,DRAW_HISTOGRAM,0,2);
SetIndexBuffer(3,loB2);
SetIndexEmptyValue(3,0);
//----
return(0);
}
int start() {
int counted_bars=IndicatorCounted();
int shift,limit;
double diff,d[],std,bbs;
/* if (counted_bars<0) return(-1);
if (counted_bars>0) counted_bars--;
limit=Bars-31;
if(counted_bars>=31) limit=Bars-counted_bars-1;*/
if (counted_bars<0) return(-1);
limit=totalBars; //Bars-31;
ArrayResize(d,limit);
for (shift=limit;shift>=0;shift--) {
/*upB[shift]=0;
upB2[shift]=0;
loB[shift]=0;
loB2[shift]=0;*/
//d[shift]=(iMomentum(NULL,0,momPrd,PRICE_CLOSE,shift) - iMomentum(NULL,0,momPrd,PRICE_CLOSE,shift+1));
d[shift]=LinearRegressionValue(momPrd,shift);
//d[shift]=0;//FindDirection(shift);
if (shift == 1) Print (d[shift]);
if(d[shift]>0) {
if (d[shift] >= d[shift+1]) {
upB[shift]=d[shift];
upB2[shift]=0;
} else {
upB2[shift]=d[shift];
upB[shift]=0;
}
loB[shift]=0;
loB2[shift]=0;
} else if (d[shift] < 0) {
if (d[shift] <= d[shift+1]) {
loB[shift]=d[shift];
loB2[shift]=0;
} else {
loB2[shift]=d[shift];
loB[shift]=0;
}
upB[shift]=0;
upB2[shift]=0;
} else {
upB[shift]=0.01;
upB2[shift]=0.01;
loB[shift]=-0.01;
loB2[shift]=-0.01;
}
diff = iATR(NULL,0,keltPrd,shift)*keltFactor;
std = iStdDev(NULL,0,bolPrd,MODE_SMA,0,PRICE_CLOSE,shift);
bbs = bolDev * std / diff;
if(bbs<1) {
upK[shift]=0;
loK[shift]=EMPTY_VALUE;
if (alertBox == true && shift == 0) Alert("Warning for ", Symbol(), " on ", Period(), " chart!");
if (audioAlert == true && shift == 0) PlaySound("alert.wav");
} else {
loK[shift]=0;
upK[shift]=EMPTY_VALUE;
}
}
return(0);
}
//+------------------------------------------------------------------+
double FindDirection (int i) {
int j;
double val;
double bulls, bears;
for (j=i+8; j>i; j--) {
bulls += High[j]-Close[j];
bears += Close[j]-Low[j];
if (bulls > bears) {
val = 0.5;
} else if (bears > bulls) {
val = -0.5;
}
//sum += (Close[j] - Open[j]);
//val = sum/j;
}
return (val);
}
double LinearRegressionValue(int Len,int shift) {
double SumBars = 0;
double SumSqrBars = 0;
double SumY = 0;
double Sum1 = 0;
double Sum2 = 0;
double Slope = 0;
SumBars = Len * (Len-1) * 0.5;
SumSqrBars = (Len - 1) * Len * (2 * Len - 1)/6;
for (int x=0; x<=Len-1;x++) {
double HH = Low[x+shift];
double LL = High[x+shift];
for (int y=x; y<=(x+Len)-1; y++) {
HH = MathMax(HH, High[y+shift]);
LL = MathMin(LL, Low[y+shift]);
}
Sum1 += x* (Close[x+shift]-((HH+LL)/2 + iMA(NULL,0,Len,0,MODE_EMA,PRICE_CLOSE,x+shift))/2);
SumY += (Close[x+shift]-((HH+LL)/2 + iMA(NULL,0,Len,0,MODE_EMA,PRICE_CLOSE,x+shift))/2);
}
Sum2 = SumBars * SumY;
double Num1 = Len * Sum1 - Sum2;
double Num2 = SumBars * SumBars-Len * SumSqrBars;
if (Num2 != 0.0) {
Slope = Num1/Num2;
} else {
Slope = 0;
}
double Intercept = (SumY - Slope*SumBars) /Len;
//debugPrintln(Intercept+" : "+Slope);
double LinearRegValue = Intercept+Slope * (Len - 1);
return (LinearRegValue);
}
Sample
Analysis
Market Information Used:
Series array that contains close prices for each bar
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar
Indicator Curves created:
Implements a curve of type DRAW_HISTOGRAM
Implements a curve of type DRAW_ARROW
Indicators Used:
Indicator of the average true range
Standard Deviation indicator
Moving average indicator
Custom Indicators Used:
Order Management characteristics:
Other Features:
It issuies visual alerts to the screen
It plays sound alerts