EMA exponential

[jsbachintrade]

Hello,

  in Metatrader 5 when you choose a Moving Average with the exponential method there is no parameter for the \alpha coefficient that is in the definition formula.

  So what is his value and how can we change it...?

Thx

[William Roeder]

When you choose EMA you also choose the length. ^AlphaEMA ^{= 2.0/(1+Length}SMA ⁾
          Moving average - Wikipedia