//+------------------------------------------------------------------+
//| Pattern Recognition v1.0 |
//| (complete rewrite and name change of pattern alert) |
//| |
//| Copyright © 2005, Jason Robinson |
//| (jasonrobinsonuk, jnrtrading) |
//| http://www.jnrtrading.co.uk |
//| |
//| This is still work in progress and needs LOTS of testing |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, Jason Robinson (jnrtrading)."
#property link "http://www.jnrtrading.co.uk"
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 LimeGreen
#property indicator_color2 White
extern bool Show_Alert = true;
extern bool Display_Bearish_Engulfing = true;
extern bool Display_Three_Outside_Down = true;
extern bool Display_Three_Inside_Down = true;
extern bool Display_Dark_Cloud_Cover = true;
extern bool Display_Three_Black_Crows = true;
extern bool Display_Bullish_Engulfing = true;
extern bool Display_Three_Outside_Up = true;
extern bool Display_Three_Inside_Up = true;
extern bool Display_Piercing_Line = true;
extern bool Display_Three_White_Soldiers = true;
extern bool Display_Stars = true;
extern bool Display_Harami = true;
//---- buffers
double upArrow[];
double downArrow[];
string PatternText[5000];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init() {
//---- indicators
SetIndexStyle(0,DRAW_ARROW, EMPTY);
SetIndexArrow(0,233);
SetIndexBuffer(0, downArrow);
SetIndexStyle(1,DRAW_ARROW, EMPTY);
SetIndexArrow(1,234);
SetIndexBuffer(1, upArrow);
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit() {
ObjectsDeleteAll(0, OBJ_TEXT);
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start(){
double Range, AvgRange;
int counter, setalert;
static datetime prevtime = 0;
int shift;
int shift1;
int shift2;
int shift3;
string pattern, period;
int setPattern = 0;
int alert = 0;
int arrowShift;
int textShift;
double O, O1, O2, C, C1, C2, L, L1, L2, H, H1, H2;
if(prevtime == Time[0]) {
return(0);
}
prevtime = Time[0];
switch (Period()) {
case 1440:
period = "D1";
break;
case 10080:
period = "W1";
break;
case 43200:
period = "MN";
break;
}
for (int j = 0; j < Bars; j++) {
PatternText[j] = "pattern-" + j;
}
for (shift = 0; shift < Bars; shift++) {
setalert = 0;
counter=shift;
Range=0;
AvgRange=0;
for (counter=shift ;counter<=shift+9;counter++) {
AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
}
Range=AvgRange/10;
shift1 = shift + 1;
shift2 = shift + 2;
shift3 = shift + 3;
O = Open[shift1];
O1 = Open[shift2];
O2 = Open[shift3];
H = High[shift1];
H1 = High[shift2];
H2 = High[shift3];
L = Low[shift1];
L1 = Low[shift2];
L2 = Low[shift3];
C = Close[shift1];
C1 = Close[shift2];
C2 = Close[shift3];
// Bearish Patterns
// Check for Bearish Engulfing pattern
if ((C1>O1)&&(O>C)&&(O>=C1)&&(O1>=C)&&((O-C)>(C1-O1))) {
if (Display_Bearish_Engulfing == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], High[shift1] + Range*1.5);
ObjectSetText(PatternText[shift], "Bearish Engulfing", 9, "Times New Roman", Red);
downArrow[shift1] = High[shift1] + Range*0.5;
}
if (setalert == 0 && Show_Alert == true) {
pattern = "Bearish Engulfing Pattern";
setalert = 1;
}
}
// Check for a Three Outside Down pattern
if ((C2>O2)&&(O1>C1)&&(O1>=C2)&&(O2>=C1)&&((O1-C1)>(C2-O2))&&(O>C)&&(C<C1)) {
if (Display_Three_Outside_Down == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], Low[shift1] - Range*1.5);
ObjectSetText(PatternText[shift], "Three Oustide Down", 9, "Times New Roman", Red);
upArrow[shift1] = Low[shift1] - Range*0.5;
}
if (setalert == 0 && Show_Alert == true) {
pattern="Three Oustide Down Pattern";
setalert = 1;
}
}
// Check for a Dark Cloud Cover pattern
if ((C1>O1)&&(((C1+O1)/2)>C)&&(O>C)&&(O>C1)&&(C>O1)&&((O-C)/(0.001+(H-L))>0.6)) {
if (Display_Dark_Cloud_Cover == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], High[shift1] + Range*1.5);
ObjectSetText(PatternText[shift], "Dark Cloud Cover", 9, "Times New Roman", Red);
downArrow[shift1] = High[shift1] + Range*0.5;
}
if (setalert == 0 && Show_Alert == true) {
pattern="Dark Cloud Cover Pattern";
setalert = 1;
}
}
// Check for Evening Doji Star pattern
if ((C2>O2)&&((C2-O2)/(0.001+H2-L2)>0.6)&&(C2<O1)&&(C1>O1)&&((H1-L1)>(3*(C1-O1)))&&(O>C)&&(O<O1)) {
if (Display_Stars == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], High[shift1] + Range*1.5);
ObjectSetText(PatternText[shift], "Evening Doji Star", 9, "Times New Roman", Red);
downArrow[shift1] = High[shift1] + Range*0.5;
}
if (setalert == 0 && Show_Alert == true) {
pattern="Evening Doji Star Pattern";
setalert = 1;
}
}
// Check for Bearish Harami pattern
if ((C1>O1)&&(O>C)&&(O<=C1)&&(O1<=C)&&((O-C)<(C1-O1))) {
if (Display_Harami == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], High[shift1] + Range*1.5);
ObjectSetText(PatternText[shift], "Bearish Harami", 9, "Times New Roman", Red);
downArrow[shift1] = High[shift1] + Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Bearish Harami Pattern";
setalert = 1;
}
}
// Check for Three Inside Down pattern
if ((C2>O2)&&(O1>C1)&&(O1<=C2)&&(O2<=C1)&&((O1-C1)<(C2-O2))&&(O>C)&&(C<C1)&&(O<O1)) {
if (Display_Three_Inside_Down == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], High[shift1] + Range*1.5);
ObjectSetText(PatternText[shift], "Three Inside Down", 9, "Times New Roman", Red);
downArrow[shift1] = High[shift1] + Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Three Inside Down Pattern";
setalert = 1;
}
}
// Check for Three Black Crows pattern
if ((O > C * 1.01)&&(O1 > C1 * 1.01)&&(O2 > C2*1.01)&&(C < C1)&&(C1 < C2)&&(O > C1)&&(O < O1)&&(O1 > C2)&&(O1 < O2)&&(((C - L)/(H - L))<0.2)&&(((C1 - L1)/(H1 - L1))<0.2)&&(((C2 - L2)/(H2 - L2))<0.2)){
if (Display_Three_Black_Crows == true){
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], High[shift1] + Range*1.5);
ObjectSetText(PatternText[shift], "Three Black Crows", 9, "Times New Roman", Red);
downArrow[shift1] = High[shift1] + Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Three Black Crows Pattern";
setalert = 1;
}
}
// Check for Evening Star Pattern
if ((C2>O2)&&((C2-O2)/(0.001+H2-L2)>0.6)&&(C2<O1)&&(C1>O1)&&((H1-L1)>(3*(C1-O1)))&&(O>C)&&(O<O1)) {
if (Display_Stars == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], High[shift1] + Range*1.5);
ObjectSetText(PatternText[shift], "Evening Star", 9, "Times New Roman", Red);
downArrow[shift1] = High[shift1] + Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern = "Evening Star Pattern";
setalert = 1;
}
}
// End of Bearish Patterns
// Bullish Patterns
// Check for Bullish Engulfing pattern
if ((O1>C1)&&(C>O)&&(C>=O1)&&(C1>=O)&&((C-O)>(O1-C1))) {
if (Display_Bullish_Engulfing) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], Low[shift1] - Range*1.5);
ObjectSetText(PatternText[shift], "Bullish Engulfing", 9, "Times New Roman", Red);
upArrow[shift1] = Low[shift1] - Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Bullish Engulfing Pattern";
setalert = 1;
}
}
// Check for Three Outside Up pattern
if ((O2>C2)&&(C1>O1)&&(C1>=O2)&&(C2>=O1)&&((C1-O1)>(O2-C2))&&(C>O)&&(C>C1)) {
if (Display_Three_Outside_Up == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], Low[shift1] - Range*1.5);
ObjectSetText(PatternText[shift], "Three Outside Up", 9, "Times New Roman", Red);
upArrow[shift1] = Low[shift1] - Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Three Outside Up Pattern";
setalert = 1;
}
}
// Check for Bullish Harami pattern
if ((O1>C1)&&(C>O)&&(C<=O1)&&(C1<=O)&&((C-O)<(O1-C1))) {
if (Display_Harami == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], Low[shift1] - Range*1.5);
ObjectSetText(PatternText[shift], "Bullish Harami", 9, "Times New Roman", Red);
upArrow[shift1] = Low[shift1] - Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Bullish Harami Pattern";
setalert = 1;
}
}
// Check for Three Inside Up pattern
if ((O2>C2)&&(C1>O1)&&(C1<=O2)&&(C2<=O1)&&((C1-O1)<(O2-C2))&&(C>O)&&(C>C1)&&(O>O1)) {
if (Display_Three_Inside_Up == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], Low[shift1] - Range*1.5);
ObjectSetText(PatternText[shift], "Three Inside Up", 9, "Times New Roman", Red);
upArrow[shift1] = Low[shift1] - Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Three Inside Up Pattern";
setalert = 1;
}
}
// Check for Piercing Line pattern
if ((C1<O1)&&(((O1+C1)/2)<C)&&(O<C)&&(O<C1)&&(C<O1)&&((C-O)/(0.001+(H-L))>0.6)) {
if (Display_Piercing_Line == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], Low[shift1] - Range*1.5);
ObjectSetText(PatternText[shift], "Piercing Line", 9, "Times New Roman", Red);
upArrow[shift1] = Low[shift1] - Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Piercing Line Pattern";
setalert = 1;
}
}
// Check for Three White Soldiers pattern
if ((C>O*1.01)&&(C1>O1*1.01)&&(C2>O2*1.01)&&(C>C1)&&(C1>C2)&&(O<C1)&&(O>O1)&&(O1<C2)&&(O1>O2)&&(((H-C)/(H-L))<0.2)&&(((H1-C1)/(H1-L1))<0.2)&&(((H2-C2)/(H2-L2))<0.2)) {
if (Display_Three_White_Soldiers == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], Low[shift1] - Range*1.5);
ObjectSetText(PatternText[shift], "Three White Soldiers", 9, "Times New Roman", Red);
upArrow[shift1] = Low[shift1] - Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Three White Soldiers Pattern";
setalert = 1;
}
}
// Check for Morning Doji Star
if ((O2>C2)&&((O2-C2)/(0.001+H2-L2)>0.6)&&(C2>O1)&&(O1>C1)&&((H1-L1)>(3*(C1-O1)))&&(C>O)&&(O>O1)) {
if (Display_Stars == true) {
ObjectCreate(PatternText[shift], OBJ_TEXT, 0, Time[shift1], Low[shift1] - Range*1.5);
ObjectSetText(PatternText[shift], "Morning Doji Star", 9, "Times New Roman", Red);
upArrow[shift1] = Low[shift1] - Range*0.5;
}
if (shift == 0 && Show_Alert == true) {
pattern="Morning Doji Star Pattern";
setalert = 1;
}
}
if (setalert == 1 && shift == 0) {
Alert(Symbol(), " ", period, " ", pattern);
setalert = 0;
}
} // End of for loop
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains open time of each bar
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar
Series array that contains open prices of each bar
Series array that contains close prices for each bar
Indicator Curves created:
Implements a curve of type DRAW_ARROW
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features:
It issuies visual alerts to the screen