//+------------------------------------------------------------------+
//| trend_v3.mq4 |
//| Copyright © 2008, MetaQuotes Software Corp. |
//| http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2008, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net"
#property indicator_chart_window
#property indicator_buffers 5
#property indicator_color1 Blue
#property indicator_color2 Black
#property indicator_color3 Black
#property indicator_color4 Red
#property indicator_color5 Black
extern int period =20;
double A[],C[],D[],C1[],C2[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,A);
SetIndexDrawBegin(0,0);
SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer(1,D);
SetIndexDrawBegin(1,0);
SetIndexStyle(2,DRAW_LINE);
SetIndexBuffer(2,C);
SetIndexDrawBegin(2,0);
SetIndexStyle(3,DRAW_LINE);
SetIndexBuffer(3,C1);
SetIndexDrawBegin(3,0);
SetIndexStyle(4,DRAW_LINE);
SetIndexBuffer(4,C2);
SetIndexDrawBegin(4,0);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int counted_bars=IndicatorCounted();
int i, j, k, q, limit;
double X[2][2], Y[2], B[2], x[2][2000], y[2000], a,sr,sr1,sr2;
limit=Bars-counted_bars;
for(q=0; q<limit; q++)
{
ArrayInitialize(X,0);
ArrayInitialize(Y,0);
ArrayInitialize(B,0);
ArrayInitialize(x,0);
ArrayInitialize(y,0);
//===========================================
for (i=0; i<=period; i++) {
x[0][i]=1;
x[1][i]=i+q;
y[i]= Close[i+q];
}
//===========================================
for (k=1; k<=period; k++) {
for (j=0; j<=1; j++) {
for (i=0; i<=1; i++) {
X[i][j]=x[j][k]*x[i][k]+X[i][j];
}
Y[j]=y[k]*x[j][k]+Y[j];
}}
//===========================================
k=0;
j=1;
a=X[k][j]/X[k][k];
for (i=0; i<=3; i++){
X[i][j]=X[i][j]-X[i][k]*a;
}
Y[j]=Y[j]-Y[k]*a;
//==========================================
for (k=2; k>=1; k--){
a=0;
for (i=1; i>=k; i--){
a=X[i][k-1]*B[i]+a;
}
B[k-1]=(Y[k-1]-a)/X[k-1][k-1];
}
//=========================================
A[q]=B[0]+B[1]*q;
A[q]=B[0]+B[1]*q;
if(B[1]<0){C1[q]=B[0]+B[1]*q;}
if(B[1]==0){C2[q]=B[0]+B[1]*q;}
for(j=q; j<=q+period; j++){
sr1=MathAbs(High[j]-(B[0]+B[1]*(j)))+sr1;
sr2=MathAbs(Low[j]-(B[0]+B[1]*(j)))+sr2;
}
sr1=sr1/period;
sr2=sr2/period;
D[q]=B[0]+2*sr1+B[1]*(q);
C[q]=B[0]-2*sr2+B[1]*(q);
}
//}
//=========================================
return(0);
}
//+------------------------------------------------------------------+
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_LINE
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features: