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
Recursive Kernel Trend
A trend line on the price chart from a recursive filter that corrects a fraction of its error against price on each bar.
GitHub stars1on the repository
Pine versionv6current
Lines of code245
Settings30inputs
LicenceNone stated
Last update2 months ago23 Aug 2026
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 correction rate is scheduled by efficiency and volatility weighting, can be biased by direction, and the filter structure can be Standard, Wilder, Double, Triple, Gaussian or Hull. A state filter with confirmation bars decides the bullish or bearish color. A gradient layer, bar coloring and presets for fast, default and smooth use are provided.
- Recursive filter with six structures
- Rate scheduled by efficiency and volatility
- Directional bias and correction memory
- State confirmation bars
- Gradient layer and bar coloring
Details
Published by
vedkanani123 on GitHub
Code credit
QuantAlgo, as written in the script's header
Type
Indicator, Pine Script v6
Draws
On the price chart
Category
Trend, Moving averages
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 |
|---|---|---|---|
| Preset Configuration | string | Default | preset |
| Price Source | source | close | src |
| Filter Structure | string | Standard | kernel |
| Recursion Rate | float | 0.12 | gain_base |
| Correction Weight | float | 0.008 | corr_gain |
| Correction Decay | float | 0.98 | corr_decay |
| Correction Limiter | bool | false | use_limiter |
| Limiter Ceiling (ATR) | float | 0.75 | limit_cap |
| Enable Efficiency Weighting | bool | true | use_eff |
| Efficiency Lookback | int | 10 | eff_len |
| Efficiency Floor | float | 0.35 | eff_floor |
| Enable Volatility Weighting | bool | true | use_vol |
Show all 30 settings
| Setting | Type | Default | Variable |
|---|---|---|---|
| Volatility Length | int | 14 | vol_len |
| Volatility Baseline Length | int | 50 | vol_baselen |
| Rate Floor | float | 0.02 | gain_floor |
| Rate Ceiling | float | 0.40 | gain_ceil |
| Enable Directional Bias | bool | true | use_bias |
| Upside Rate Bias | float | 1.25 | bias_up |
| Downside Rate Bias | float | 0.85 | bias_dn |
| State Filter Length | int | 3 | slope_len |
| State Confirmation Bars | int | 2 | flip_bars |
| Color Preset | string | Custom | color_preset |
| Bullish Color | color | #00ffaa | bullish_input |
| Bearish Color | color | #ff0000 | bearish_input |
| Line Width | int | 3 | line_width |
| Show Gradient Layer | bool | true | show_field |
| Gradient Width | float | 0.5 | field_width |
| Gradient Opacity | int | 30 | field_opacity |
| Enable Bar Coloring | bool | false | show_candles |
| Bar Color Transparency | int | 0 | bar_trans |
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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