Progressive Exponential Moving Average

Wasn't sure what to call this, was an idea I saw online, being the code is a progression of 6 ema's decided to call it a progressive ema. Anyway in this you have a option of using relative ma, ema, or fast ema and also a filtering option. The indicator has considerable lag so from what I can tell best to use small period values. Also added a double smooth option to hopefully help with the lag. Anyway think it's okay and worth testing.