Live example
Settings and defaults
| Setting | Default | Allowed range |
|---|---|---|
| High-pass period | 48 | 5 to 500 |
| Roofing smoothing period | 10 | 3 to 499 |
| Source | Close | Open, High, Low, Close, High-low average, Typical price, OHLC average |
What it plots
Drawn in its own pane below the price chart, with its own scale.
| Line | Unit | Drawn as | First value |
|---|---|---|---|
| Value | Price | Line | after 3 candles |
Calculation notes
- Combines a two-pole high-pass filter and SuperSmoother. Defaults 48/10; first output after 3 valid bars. Price difference around zero, not percent. Missing data restarts preparation.
Questions
What are the default settings of Ehlers Roofing Filter?
The defaults are High-pass period: 48, Roofing smoothing period: 10, Source: Close. You can change every setting on the live chart.
Can I use Ehlers Roofing Filter for free on TraderAI?
Yes. Every indicator in the library can be added to the free live chart. The free plan keeps up to 2 indicators active at the same time; Pro lets you combine more on one chart.
Educational content. Indicators describe past prices; they do not predict future prices and are not investment advice.