Adaptive Exponential Moving Average (Dynamic Smoothed)

Explanation about this indicator: Vitali Apirine introduces a new adaptive moving average (AEMA) technique that combines with a standard exponential moving average to help identify overall trends. The Adaptive EMA is essentially an exponential moving average (EMA) with a dynamic smoothing coefficient that adapts to the relative position of the close price in the high-low range.

This is my attempt to do of Vitali Apirine's adaptive ema version and a double smooth ema version. On the chart it is showing 3 ema's. The dark blue is a 30 period mt4 ema, the lighter blue is a 30 period and 30 lookback period adaptive ema(AEMA), and the red is a 30 period 30 lookback period double smooth adaptive ema(DS AEMA).

PS: The "Ribbon" version with Multi-timeframe is now available as well, here: AEMA Ribbon filled for MT4.