OPEN-SOURCE SCRIPT
Updated 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:
ABCD Classic
AB=CD
ABCD Extension
Gartley
Crab
Deep Crab
Bat
Butterfly
Shark
Cypher
Three Drives
5-0
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:

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:

Release Notes
- Removed deviation threshold and disable stats on load. (Can be enabled in settings)
- Default length is set to 5
Release Notes
Update labelsRelease Notes
update labelsRelease Notes
Fix errorRelease Notes
Remove stats againRelease Notes
Corrected errors in 3-Drive and 5-0 where B does not need to be in the middle.Release Notes
Minor parameter adjustments.Release Notes
Add labels.Release Notes
No updates. But, just converted to pine 5 :)Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
For quick access on a chart, add this script to your favorites — learn more here.
Trial - trendoscope.io/trial
Subscribe - trendoscope.io/pricing
Blog - docs.trendoscope.io
Subscribe - trendoscope.io/pricing
Blog - docs.trendoscope.io
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
For quick access on a chart, add this script to your favorites — learn more here.
Trial - trendoscope.io/trial
Subscribe - trendoscope.io/pricing
Blog - docs.trendoscope.io
Subscribe - trendoscope.io/pricing
Blog - docs.trendoscope.io
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.