Double exponential moving average indicator

[pensiveowl]

Hi.. Is there someone who can help me create this indicator for FT2?

Double Exponential MA Formula:
DEMA = 2*EMA – EMA(EMA)

EMA = EMA(1) + α * (Close – EMA(1))
α = 2 / (N + 1)
N = The smoothing period.

Source http://etfhq.com/blog/2010/11/17/double ... g-average/