P.H.Pee has created a few indicators. In the series of those created by him there is a phase change index too
This version deviates from the original though :
Usage : you can use the color changes as signals

Trend intensity index
Trend intensity index
Trade signal based on PullBack and Candle (for MQL5 Wizard)
This is the trading signal of PullBack and Candle. The expert code for this strategy is automatically generated by the MQL 5 wizard.
BB stops - Hull average
BB stops - Hull average based with multiple stops included
Normalizied MACD - self adjusting signal
Normalizied MACD - self adjusting signals