Price curves consist of much noise and little signal. For separating the latter from the former, John Ehlers proposed in the Stocks&Commodities May 2021 issue an unusual approach: Treat the price curve like a radio wave. Apply AM and FM demodulating technology for separating trade signals from the underlying noise.
reference: financial-hacker.com
Library "JohnEhlersFourierTransform"
Fourier Transform for Traders By John Ehlers, slightly modified to allow to inspect other than the 8-50 frequency spectrum.
reference:
www.mesasoftware.com
high_pass_filter(source) Detrended version of the data by High Pass Filtering with a 40 Period cutoff
Parameters:
source : float, data source.
Returns:...
The Leading Indicator was created by John Ehlers (Cybernetic Analysis For Stocks And Futures pg 235) and as the name implies, this is a leading indicator that provides super early signals. Feel free to change the alpha values to adjust to your needs. Buy when the indicator line is green and sell when it is red.
Let me know if there are other scripts you would...
The NonLinear Filter was created by John Ehlers and this one of his more unknown filters that work very well as a trendline and moving average. This is one of my favorites along with the instantenous trendlines that he created. Buy when the line turns green and sell when it turns red.
Let me know if there are any other indicators you would like to see me publish...
Level: 2
Background
John F. Ehlers introuced Fisherized Deviation Scaled Oscillator in Oct, 2018.
Function
In “Probability—Probably A Good Thing To Know,” John Ehlers introduces a procedure for measuring an indicator’s probability distribution to determine if it can be used as part of a reversion-to-the-mean trading strategy. Dr. Ehlers demonstrates this...
Level: 2
Background
John F. Ehlers introuced adding the Fisher Transform to the Adaptive RSI in his "Cycle Analytics for Traders" chapter 15 on 2013.
Function
The purpose of the Fisher transform is to take any indicator having a nominally zero mean and bounded between the limits of −1 to +1 and convert the amplitude so that the transformed indicator has an...
The Mesa Spectrum Dominant Cycle was created by John Ehlers and this is the foundation for many indicators he created that would later follow. This is his updated version of his original Mesa algorithm and I do not recommend this indicator as a stand alone for trading. This is more of an informational indicator that will tell you the current dominant cycle period...
The Spearman Rank Indicator was created by John Ehlers (Stocks and Commodities July 2020 pg 6) and this works well as a trend confirmation indicator. This is obviously his take on the Spearman Ranking Correlation and make sure to let me know what you think! Buy when the line turns green and sell when it turns red.
Let me know if there are any other indicators you...
Level: 2
Background
John F. Ehlers introuced Leading Indicator in his "Cybernetic Analysis for Stocks and Futures" chapter 16 on 2004.
Function
The leading characteristic is present in the net filte.As predicted, the lead is one bar at very low frequencies. That is, the trend indication will lead by one bar. However, the net filter has a lag of approximately...
The Even Better Sinewave Indicator was created by John Ehlers (Cycle Analytics For Traders pgs 161-162) and this indicator works well when the stock is in a trend mode. It will let you know how long to stay with a trade and it works best with a trend confirmation but it can also work on it's own fairly well. Buy when the indicator line is green and sell when it is...
The Sinewave Indicator was created by John Ehlers (Rocket Science For Traders pgs 97-99) and this is a few indicators in one. Simply put it is a leading indicator which you don't see too many of those these days. If the blue line crosses over the red line then within the next few bars the price will start an uptrend and if the blue line crosses below the red line...
The Sinewave Indicator was created by John Ehlers (Cybernetic Analysis For Stocks And Futures pgs 154-155) and this is an updated version of his original Sinewave Indicator which in my opinion seems to be more reactive to changes. Buy when the blue line crosses over the red line and sell when the blue line crosses under the red line. Also keep in mind that this...
The Super PassBand Filter was created by John Ehlers (Stocks & Commodities V. 34:07 (10–13)) and this is a pretty useful indicator to let you know how volatile the market is right now. This is useful for scalpers because this lets you avoid the choppy markets (usually when the rms is 1.50 or less but feel free to choose your own level) and gives you good entry and...
Level: 2
Background
John F. Ehlers introuced Super Passband Filter in Jul, 2016.
Function
In “The Super Passband Filter” in Jul, 2016, John Ehlers addressed the problem of frequencies in indicators that are too low or too high. The common practice to refine frequency is to enable smart filters. However, good filters take lots of computational power. So Ehlers...
This is the RSI indicator that I use. It combines two concepts of John Ehler. It integrates the idea of Highpass filtering the Price data, along with the the idea of automatically determining the Dominant price cycle through a Homodyne Discriminator, and using half of a cycle length as the input for the RSI. Not only determines the most effective range for the RSI...
The Instantaneous Trendline was created by John Ehlers (Rocket Science For Traders pgs 109-110) and this indicator is perfect for determining the medium to long term trend. Buy when the indicator line is green and sell when it is red. I will be introducing a different version of this indicator which is perfect for short term trends so these will pair great...
The Predictive Moving Average was created by John Ehlers (Rocket Science For Traders pg 212) and this is one of his first leading indicators. I have been asked by many people for more leading indicators so this one is for you all! Buy when the indicator line is green and sell when it is red.
Let me know if there are other indicators you would like to see me...
The Instantaneous Trendline was created by John Ehlers (Cybernetic Analysis For Stocks And Futures pg 24) and this is an updated version of his original Instantaneous Trendline that works much better in my opinion. Buy when the indicator line turns green and sell when it turns red.
Let me know what other scripts you would like to see me publish or if you want...
![AAPL: Ehlers Leading Indicator [CC]](https://s3.tradingview.com/6/6Dl0db4S_mid.png "Ehlers Leading Indicator [CC]")
![AAPL: Ehlers NonLinear Filter [CC]](https://s3.tradingview.com/x/xltq6AMJ_mid.png "Ehlers NonLinear Filter [CC]")
![XAUUSD: [blackcat] L2 Ehlers Fisherized Deviation Scaled Oscillator](https://s3.tradingview.com/u/U0KckZSC_mid.png "[blackcat] L2 Ehlers Fisherized Deviation Scaled Oscillator")
![XAUUSD: [blackcat] L2 Ehlers Fisher Adaptive RSI](https://s3.tradingview.com/s/SGlNMfnx_mid.png "[blackcat] L2 Ehlers Fisher Adaptive RSI")
![AAPL: Ehlers Mesa Spectrum Dominant Cycle [CC]](https://s3.tradingview.com/g/GPje8Vi8_mid.png "Ehlers Mesa Spectrum Dominant Cycle [CC]")
![AAPL: Ehlers Spearman Rank Indicator [CC]](https://s3.tradingview.com/r/rpKPpW51_mid.png "Ehlers Spearman Rank Indicator [CC]")
![NAS100USD: [blackcat] L2 Ehlers Leading Indicator](https://s3.tradingview.com/v/vjsGjwrk_mid.png "[blackcat] L2 Ehlers Leading Indicator")
![AAPL: Ehlers Even Better Sinewave Indicator [CC]](https://s3.tradingview.com/a/a1AeExr4_mid.png "Ehlers Even Better Sinewave Indicator [CC]")
![AAPL: Ehlers Sinewave Indicator [CC]](https://s3.tradingview.com/b/bMR0ZDMy_mid.png "Ehlers Sinewave Indicator [CC]")
![AAPL: Ehlers Sinewave Indicator V2 [CC]](https://s3.tradingview.com/z/z46ko6yt_mid.png "Ehlers Sinewave Indicator V2 [CC]")
![AAPL: Ehlers Super PassBand Filter [CC]](https://s3.tradingview.com/t/T0c3oqfk_mid.png "Ehlers Super PassBand Filter [CC]")
![BTCUSD: [blackcat] L2 Ehlers Super Passband Filter](https://s3.tradingview.com/o/O1dp1Gk6_mid.png "[blackcat] L2 Ehlers Super Passband Filter")
![AAPL: Ehlers Instantaneous Trendline V1 [CC]](https://s3.tradingview.com/d/d0l755bG_mid.png "Ehlers Instantaneous Trendline V1 [CC]")
![AAPL: Ehlers Predictive Moving Average [CC]](https://s3.tradingview.com/k/kexjZZwL_mid.png "Ehlers Predictive Moving Average [CC]")
![AAPL: Ehlers Instantaneous Trendline V2 [CC]](https://s3.tradingview.com/p/ptcuAPkA_mid.png "Ehlers Instantaneous Trendline V2 [CC]")