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 v5 · On the chart
Polynomial Regression Extrapolation
An overlay indicator that fits a polynomial of chosen degree, from 0 to 8, to the most recent bars of a selected price source and draws the fitted curve with line segments.
Repaints
GitHub stars1on the repository
Pine versionv5runs as is
Lines of code132
Settings9inputs
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 curve is extended a set number of bars into the future in a separate color, and segments are colored by direction. A lock option freezes the forecast. The fit is recomputed on the latest bar, so the curve and its projection change as new bars arrive.
- Polynomial regression fit of adjustable degree
- Forecast extension of future bars
- Direction-based segment colors
- Lock forecast option
Details
Published by
vedkanani123 on GitHub
Code credit
LuxAlgo, as written in the script's header
Type
Indicator, Pine Script v5
Draws
On the price chart
Category
Trend
Markets
Any symbol
Timeframes
Any timeframe
Risk Notes
- Signals can change on the live bar or after it closes (repainting)
Settings
The inputs you can change from the gear icon on the chart. Defaults are the author's.
| Setting | Type | Default | Variable |
|---|---|---|---|
| length | int | 100 | length |
| extrapolate | int | 10 | extrapolate |
| Polynomial Degree | int | 3 | degree |
| src | source | close | src |
| Lock Forecast | bool | false | lock |
| Upward Color | color | #0cb51a | up_css |
| Downward Color | color | #ff1100 | dn_css |
| Extrapolation Color | color | #ff5d00 | ex_css |
| Width | int | 1 | width |
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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