Ultimate Supertrend1. The Core: NLMS Adaptive Filter
At its heart is the Normalized Least Mean Squares (NLMS) filter. Unlike a standard moving average (SMA/EMA) that statically averages the last X bars, the NLMS is an "online" machine-learning predictor.
It looks at the past M bars (taps) and uses gradient descent to calculate "weights" that best predict the current price.
The Step Size (μ) dictates how aggressively it learns. A higher step size makes it hug the price very closely (reactive), while a lower step
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