Slow Adaptive Trend Line - is a long-term trend line estimate.
Low frequency filter parameters are selected from current spectrum of specified market.
SATL (k) is an average of distribution of FATL (k). [Fast Adaptive Trend Line]
Rising SATL line points out the bullish trend, falling line points the bearish trend.
This SATL was smoothed by the T3 algorithm. It's smoother than the regular SATL.
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