# Charts

Detrended Price Oscillator (DPO)

# Detrended Price Oscillator (DPO)

The Detrended Price Oscillator, by Gerald Appel, attempts to eliminate the long-term trends in prices by using a displaced moving average so it does not react to the most current price action. This allows the indicator to show intermediate overbought and oversold levels effectively.

## Configuration Options

• Field: Price or combination of prices to use as the base for average calculations. Possible values include:
• Open
• High
• Low
• 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 $$\left ( \frac{Open + High + Low + Close}{4} \right )$$
• Period: Number of bars to use in the calculations.
• Moving Average Type: Type of moving average to use in the calculations:
• Simple
• Exponential
• Time Series
• Triangular
• Variable
• VIDYA
• Weighted
• Welles Winder
• Hull
• Double Exponential
• Triple Exponential
• Color Selectors: Colors to use for graph elements.
• Display Axis Label: Whether to display the most recent value on the Y axis.

## Formula

$DPO = Close - MA_{n}\;of\;\left ( \frac{n}{2}+1 \right )\;periods\;ago$