Charts
Center of Gravity (COG)
The Center of Gravity oscillator, developed by John Ehler, produces less lag indicating pivot points. The indicator was the result of studies of adaptive filters.
![](Content/technical-indicators/screenshots/center-of-gravity.png)
Configuration Options
![](Content/technical-indicators/dialogs/center-of-gravity.png)
- Period: Number of days in the to use for calculations.
- Field: Price or combination of prices to use as the base for average calculations. Possible values include:
- Open
- High
- Low
- Close
- Adjusted Close
- HL/2 \( \left ( \frac{High + Low}{2} \right ) \)
- HLC/3 \( \left ( \frac{High + Low + Close}{3} \right ) \)
- HLCC/4 \( \left ( \frac{High + Low + Close + Close}{4} \right ) \)
- OHLC/4 \( \left ( \frac{Open + High + Low + Close}{4} \right ) \)
- Color Selectors: Colors to use for graph elements.
- Display Axis Label: Whether to display the most recent value on the Y axis.
Formula
\[COG = \frac{-\sum P_{n}\times \left ( n+1 \right )}{\sum P_{n}}\]