Auto Harmonic Patterns - Open Source

I may not be able to spend much time on the harmonic patterns and realized that there are not much open source scripts on them either. Hence, decided to release open source version which can be used by other developers for reference and build things on top of it.

Original script is protected and can be found here:

Logical ratios of patterns are coded as below:

Notations:

Lines XABCD forms the pattern in all cases. (OXABCD in case of Three drives )
abc = BC retacement of AB, xab = AB retracement of XA and so on

ABCD Classic

0.618 <= abc <= 0.786
1.272 <= bcd <= 1.618

AB=CD

Price difference between AB and CD are equal
Time difference between AB and CD are equal

ABCD Extension

0.618 <= abc <= 0.786
1.272 <= AD/ BC (price) <= 1.618

Gartley

xab = 0.618
0.382 <= abc <= 0.886
1.272 <= bcd <= 1.618 OR xad = 0.786

Crab

0.382 <= xab <= 0.618
0.382 <= abc <= 0.886
2.24 <= bcd <= 3.618 OR xad = 1.618

Deep Crab

xab = 0.886
0.382 <= abc <= 0.886
2.0 <= bcd <= 3.618 OR xad = 1.618

Bat

0.382 <= xab <= 0.50
0.382 <= abc <= 0.886
1.618 <= bcd <= 2.618 OR xad = 0.886

Butterfly

xab = 0.786
0.382 <= abc <= 0.886
1.618 <= bcd <= 2.618 OR 1.272 <= xad <= 2.618

Shark

xab = 0.786
1.13 <= abc <= 1.618
1.618 <= bcd <= 2.24 OR 0.886 <= xad <= 1.13

Cypher

0.382 <= xab <= 0.618
1.13 <= abc <= 1.414
1.272 <= bcd <= 2.0 OR xad = 0.786

Three Drives

oxa = 0.618
1.27 <= xab <= 1.618
abc = 0.618
1.27 <= bcd <= 1.618

5-0

1.13 <= xab <= 1.618
1.618 <= abc <= 2.24
bcd = 0.5

This script contains everything which original script has apart from stats. Use the original script if you are not developer looking for code reference and prefer having stats table.

I have also developed a strategy based on harmonic patterns which can be found here: