public enum StdDevModePublic Enumeration StdDevModepublic enum class StdDevModetype StdDevMode| StdDev | 0 | Standard deviation |
| Mean | 1 | Mean of the price over the lookback window |
| ZScore | 2 | Z-score: number of standard deviations between the price and the mean |
| SMA | 3 | Simple moving average of the standard deviation (requires smaPeriods) |