Linear Regression Fan
By LuxAlgoOct 11, 2021
Linear Regression Fan is an indicator on Vela, our next-generation charting platform, written in Pine Script®.

Linear Regression Fan anchors a fan of equidistant lines to a least-squares linear regression fit of price, spacing them by the fit's root-mean-square deviation multiplied by an adjustable factor. The rays originate at the regression's first point and extend to its most recent, a fit-driven relative of the classical fan principle, giving a trend graded internal levels instead of a single midline.
How to Trade the Linear Regression Fan?
- Rays as sloped support and resistance: the equidistant lines mark graded reaction levels inside the move, from the fit outward.
- Anchor at a pivot: place the Left Coordinate on the swing point that began the move, so the fit starts there. The fan then grades everything that followed.
- Extremity breaks: when price escapes the outermost lines, the measure rule of broadening wedges can be applied to project take-profit and stop-loss levels.
Mult trades coverage for precision: a larger multiplier widens the fan to contain more of the action, while a smaller one tightens it so breaks register earlier. Lines Per Side adds intermediate rays when a denser ladder of levels helps.
Linear Regression Fan Settings
- Left Coordinate / Right Coordinate: the start and end of the regression window, picked on the chart; place the left point on the pivot you care about.
- Mult: multiplies the RMSD spacing, widening or narrowing the fan.
- Lines Per Side: how many rays are drawn on each side of the fit.
- Src: the price source the regression runs on.
Frequently Asked Questions
Free to use
Run it on Vela. Go further with a paid plan.
- Up to 500 Custom Alerts, with webhook automation
- Up to 10× the chart history of Free
- Orderflow lookback up to full history
- More Quant usage to customize it, plus extra usage when you need it
- Futures data alongside crypto, stocks, forex and commodities
Also works on
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All 8 Linear Regression indicatorsRun it on Vela. Make it yours with Quant.
Open this indicator free on Vela, our next-generation charting platform. Then ask Quant, our coding agent built into Vela, to retune it or turn it into a backtested strategy of your own.



