NW Curved Interest ZonesThis indicator automatically scans and plots curved (non-linear) interest zones using Nadaraya-Watson kernel regression smoothing to create a dynamic, adaptive "mean" curve. It then identifies and draws the strongest parallel curved zones where price has repeatedly bounced with statistical validation – perfect for non-linear, organic trending or ranging markets.
How It Works (Technical Methodology)
Curved Mean Calculation
The core curve is generated via Nadaraya-Watson kernel regression (Gaussian weighting):
Smooths closing prices over the lookback period with user-adjustable bandwidth (default 30.0) – higher = smoother/less reactive, lower = tighter fit.
Range methods: "Lookback Bars" (default 400), "Fixed Start Date", or "Entire History".
Channel Envelope Detection
Measures maximum deviations above/below the smoothed curve across the period.
Defines full channel height and base offset for percentage-based zoning.
Stable Update & Anti-Repaint Logic
Full recalculation only after user-defined closed bars (default 50) OR on forced break (if price escapes visible zone envelope).
All data (curve points, slope for projection, levels, scores) snapshotted and frozen until next confirmed update.
Prevents flickering/live-bar repainting while allowing adaptive refresh.
Auto Mode Scanning
When enabled:
Scans channel height in % steps (default 1.0%).
Each candidate creates a thin curved zone parallel to the NW curve (thickness % of price, default 0.01%).
Counts valid "hits": Price touches zone and holds without break for user-defined bars (default 20).
Break source: "Close" (conservative) or "Wick" (sensitive).
Direction inferred from close relative to zone center.
Level Selection
Ranks by hit count, filters close clusters (min distance %), limits to max zones (default 8).
Manual mode: Directly applies user percentages (e.g., 0/50/100 for bottom/median/top).
Curved Zone Construction
Zones drawn as smooth, filled polylines (curved=true) following the kernel regression shape.
Historical section uses exact smoothed points; future projection uses last slope for realistic extension.
Optional long future extension or limited projection.
Dynamic coloring: Supply (above price), Demand (below price).
Dashboard
Table displays current price at each zone (stable during bar), % level, hit count (green when strong).
Update status with countdown or "TRIGGERED!" on force break.
How to Use
Ideal for markets with natural curvature (parabolic moves, rounded bottoms/tops, organic trends).
High hit counts: Proven curved support/resistance – expect strong reactions.
Bandwidth: Higher (50+) for major structural curves; lower (10–20) for shorter-term adaptive zones.
Hold Bars: Increase for stricter validation in noisy assets.
Force Break Update: Keeps zones relevant during strong trends/breakouts.
Supply Zones (Curved above price): Dynamic overhead resistance.
Demand Zones (Curved below price): Dynamic underlying support.
Confluence: Excellent with volume, order blocks, or divergence for entries/exits.
Manual Mode: Quickly overlay classic % (e.g., channel parallels).
Smooth, non-repainting curved zones provide superior visual alignment to real price action compared to linear channels.
Disclaimer
This indicator is a technical analysis tool and should be used in conjunction with other forms of analysis. Past performance does not guarantee future results. Always use proper risk management.
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