PPO Oscillator (Indicator)
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Input Information
| Name | Expression | Default | Description |
| Price | Numeric | Close | Price or expression used tor calculate the oscillator values. |
| FastLength | Numeric | 12 | Number of bars to include in calculation of the fast exponential average. |
| SlowLength | Numeric | 26 | Number of bars to include in calculation of the slow exponential average. |
| PPOSignalLength | Numeric | 9 | Number of bars used to smooth the PPO value. |
| AlertIfCrossUp | Numeric | 1 | Set to 1 for an alert to be triggered when the PPO histogram's value crosses from below 0 to above 0; Otherwise, set to 0 for no alert to be triggered in this case. |
| AlertIfCrossDown | Numeric | 1 | Set to 1 for an alert to be triggered when the PPO histogram's value crosses from above 0 to below 0; Otherwise, set to 0 for no alert to be triggered in this case. |
| PPODiff_Up_Color | Numeric | UpColorDefault | Color for positive values of PPODiff. |
| PPODiff_Down_Color | Numeric | DownColorDefault | Color for negative values of PPODiff. |
| BackgroundColorAlertCell | Numeric | DarkGray | Color for grid cell background when alert criteria is met. Note that the MyColors function provides additional colors, if desired. |
Market Synopsis
The PPO indicator calculates 2 exponential moving averages of the lengths specified by the inputs FastLength and SlowLength. The difference between these 2 averages is then plotted as percentage of the Slow moving average. This value is also averaged for the number of bars specified by the input PPOLength and then plotted as the PPOAvg. Finally, the difference between the PPO and the PPO average is calculated and plotted as the PPODiff.
Plot Information
| Number | Name | Default Color | Description |
| Plot1 | PPO | Yellow | Plots the PPO value. |
| Plot2 | PPOAvg | Cyan | Plots the PPO exponential average. |
| Plot3 | PPODiff | Red | Plots the difference between the PPO and PPOAvg as a histogram. |
| Plot4 | ZeroLine | Dark Green | Plots a reference line at zero. |
| Plot5 | CrossBarsAgo | Default | In a grid, plots the number of bars ago that the last cross of PPODiff over or under 0 occurred. |
When applied to a chart, this indicator displays four plots in a separate subgraph from the price data. In a grid, displays five plots.