These are the 2 pole and 3 pole Supersmoother Filters, which were described by John F. Ehlers in his book “Cybernetic Analysis for Stocks and Futures”.
Indicator Description
The difference between the Supersmoother Filters are as follows: The 2 pole super smoother filter (yellow) has a better approximation for price whereas the 3 pole filter (spring green) has superior smoothing.
Other Library indicators
Other indicators from this category include the Adaptive Laguerre Filter, the Butterworth Filter, the Coral Filter, the Distant Coefficient Filter, the Gaussian Filter, the Laguerre Filter and the MAAF. You may also review our indicators from the moving averages or the trend analysis categories, such as the Directional Movement Index, Zerolag TEMA, Zerolag HATEMA, Triple Weighted Moving Average, Sine WMA, Range Weighted Moving Average or the Efficiency Ratio. The Indicator Spotlight newsletter furthermore discussed the Efficiency Ratio here.
The Supersmoother Filter is available for NinjaTrader 8.