[blackcat] L2 Ehlers Hilbert Transform

22 Okt 2020

Level: 2

Background

John F. Ehlers introuced Hilbert Transform in his "Rocket Science for Traders" chapter 6. The Hilbert Transform is a procedure to create complex signals from the simple chart data familiar to all traders. Once we have the complex signals, we can compute indicators and signals that are more accurate and responsive than those computed using conventional techniques. In fact, some of the indicators we will discuss cannot be calculated at all without the Hilbert Transform.


Function
blackcat L2 Ehlers Hilbert Transform indicator performs basic Hilbert Transform (HT) from chart data source and generate complex IQ data.


Key Signal

Smooth --> 4 bar wma() w/ 1 bar lag
Detrender --> The amplitude response of a minimum-length HT can be improved by adjusting the filter coefficients by
trial and error. HT does not allow DC component at zero frequency for transformation. So, Detrender is used to remove DC component/ trend component.
Q1 --> Quadrature phase output signal
I1 --> In-phase output signal

Pros and Cons

100% John F. Ehlers definition translation, even variable names are the same. This help readers who would like to use pine to read his book.

Remarks

The 1st script for Blackcat1402 John F. Ehlers Week publication.

Readme

In real life, I am a prolific inventor. I have successfully applied for more than 60 international and regional patents in the past 12 years. But in the past two years or so, I have tried to transfer my creativity to the development of trading strategies. Tradingview is the ideal platform for me. I am selecting and contributing some of the hundreds of scripts to publish in Tradingview community. Welcome everyone to interact with me to discuss these interesting pine scripts.

The scripts posted are categorized into 5 levels according to my efforts or manhours put into these works.

Level 1 : interesting script snippets or distinctive improvement from classic indicators or strategy. Level 1 scripts can usually appear in more complex indicators as a function module or element.

Level 2 : composite indicator/strategy. By selecting or combining several independent or dependent functions or sub indicators in proper way, the composite script exhibits a resonance phenomenon which can filter out noise or fake trading signal to enhance trading confidence level.

Level 3 : comprehensive indicator/strategy. They are simple trading systems based on my strategies. They are commonly containing several or all of entry signal, close signal, stop loss, take profit, re-entry, risk management, and position sizing techniques. Even some interesting fundamental and mass psychological aspects are incorporated.

Level 4 : script snippets or functions that do not disclose source code. Interesting element that can reveal market laws and work as raw material for indicators and strategies. If you find Level 1~2 scripts are helpful, Level 4 is a private version that took me far more efforts to develop.

Level 5 : indicator/strategy that do not disclose source code. private version of Level 3 script with my accumulated script processing skills or a large number of custom functions. I had a private function library built in past two years. Level 5 scripts use many of them to achieve private trading strategy.

9 Apr

Nota Keluaran

OVERVIEW
The "[blackcat] L2 Ehlers Hilbert Transform" indicator calculates and plots two components — InPhase and Quadrature signals derived from price data using the Hilbert transform method. It helps traders visualize trends and potential turning points in market movement.

FEATURES

• Derives InPhase and Quadrature signals from price data based on the Hilbert transform algorithm
从价格数据中基于希尔伯特变换算法提取同相和正交信号

• Uses a custom smoothing function to reduce noise in the signal

• Plots both signals on the chart with distinct colors

• Highlights areas where InPhase exceeds Quadrature with yellow fill, indicating possible trend continuation or reversal zones

HOW TO USE

Apply the script to any chart by selecting '[blackcat] L2EHT' under the 'Custom Scripts' tab in TradingView.

Customize settings using the source parameter options available in the inputs panel to adjust according to desired analysis needs.

Analyze the plotted signals and filled regions to identify trends and potential reversals.

NOTES

This script requires version 5 of Pine Script language support for execution. Make sure your TradingView platform is updated accordingly.

For optimal results, use this tool alongside traditional technical indicators and confirm patterns visually before making trading decisions.