by 
The Adaptive Laguerre Filter calculates a smoothed, dynamically adjusted trendline plotted directly on the main price chart. It dynamically adjusts its damping factor (alpha) based on recent price range variations and median percentile calculations over a spec
Indicator · Pine Script v6 · On the chart
Nadaraya-Watson Rational Quadratic Kernel
An indicator that plots a Nadaraya-Watson kernel regression estimate on the price chart, using a rational quadratic kernel computed only from past bars.
GitHub stars1on the repository
Pine versionv6current
Lines of code67
Settings8inputs
LicenceNone stated
Last update1 year ago12 Aug 2025
Add It to Your TradingView Chart
- 1Copy the scriptPress Copy script above. It reads the file straight from GitHub.
- 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
- 3Paste over the templateCreate a new indicator, select all of the template text and paste. Press Save and give it a name.
- 4Add it to the chartPress Add to chart, then adjust the settings with the gear icon next to its name.
Source Code
The code stays on GitHub. The author has not published this script under an open licence, so ForexR does not show its code. Copy script reads the file straight from GitHub into your clipboard, so you can still try it on your own chart. Ask the author before reusing the code anywhere else.
Overview
The lookback window, relative weighting and starting bar are adjustable. The line turns bullish or bearish colour either when its slope changes or, with smooth colours on, when a second estimate with a configurable lag crosses it. Alerts are provided for colour changes.
- Rational quadratic kernel regression line
- Adjustable lookback and relative weighting
- Slope or crossover based colouring
- Colour change alerts
Details
Published by
turnupdigital on GitHub
Type
Indicator, Pine Script v6
Draws
On the price chart
Category
Trend
Markets
Any symbol
Timeframes
Any timeframe
Risk Notes
No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.
Settings
The inputs you can change from the gear icon on the chart. Defaults are the author's.
| Setting | Type | Default | Variable |
|---|---|---|---|
| Source | source | close | src |
| Lookback Window | float | 8. | h |
| Relative Weighting | float | 8. | r |
| Start Regression at Bar | int | 25 | x_0 |
| Smooth Colors | bool | false | smoothColors |
| Lag | int | 2 | lag |
| Bullish Color | color | #3AFF17 | c_bullish |
| Bearish Color | color | #FD1707 | c_bearish |
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.
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