The Data Sampling Indicator was created by John Ehlers (Stocks and Commodities Mar 2023) and this is a genius method to reduce noise in the market data but also doesn't introduce any lag while doing so. The way this works is because traditionally, people have always relied on the close price as the default input for many indicators such as the RSI or MACD as...
The Adaptive Relative Strength Index was created by John Ehlers and this is his first version. I will of course publish his updated version at a later date along with publishing the final script from Jim Sloman's Ocean Theory book. I have changed his script to include extra smoothing to provide clear buy and sell signals. This is a version of a RSI that is very...
Level: 2
Background
John F. Ehlers introuced his DFT-ADAPTED RELATIVE STRENGTH INDEX (RSI) in Jan, 2007.
Function
In "Fourier Transform For Traders" in Jan, 2007, John Ehlers presented an interesting technique of improving the resolution of spectral analysis that could be used to effectively measure market cycles. Better resolution is obtained by a...
Level: 2
Background
John F. Ehlers introuced another Enhanced Signal to Noise Indicator in his "Rocket Science for Traders" chapter 8.
Function
blackcat L2 Ehlers Signal to Noise Indicator is used to measure Signal-to-Noise Ratio (SNR). In this code, the period of the measured dominant cycle is calculated in exactly the same manner as we calculated it for...
![SPX: Ehlers Data Sampling Relative Strength Indicator [CC]](https://s3.tradingview.com/r/RI5OLbKM_mid.png "Ehlers Data Sampling Relative Strength Indicator [CC]")
![AAPL: Ehlers Adaptive Relative Strength Index V1 [CC]](https://s3.tradingview.com/r/r7at5V3c_mid.png "Ehlers Adaptive Relative Strength Index V1 [CC]")
![EURUSD: [blackcat] L2 Ehlers DFT-Adapted RSI](https://s3.tradingview.com/v/V6wCdSwQ_mid.png "[blackcat] L2 Ehlers DFT-Adapted RSI")
![BTCUSD: [blackcat] L2 Ehlers Enhanced Signal to Noise Indicator](https://s3.tradingview.com/g/GfpDqgMd_mid.png "[blackcat] L2 Ehlers Enhanced Signal to Noise Indicator")
