i wonder what is mt4's smoothed ma's algorithm,can you write it in mql language? thank you guys.
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It's a relict from the 70s/80s when computer power to calculate an EMA was rare. Not used anymore.
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SMMA(n) = EMA(2*n-1)
You don't need a long timeseries of values as my fore poster hints at to calculate an EMA. Every EMA can be expressed as a filter and may be calculated easily by
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// EMA(5)
periods = 2/alpha - 1;
alpha = 2/(periods+1)
Here alpha is the weight of the current bar, the weight of the previous bar is "1-alpha".
Bottom line and in simple terms: An SMMA is just an EMA of a different period. Example: SMMA(10) is identical to EMA(21).
That's why an SMMA is obsolete.
It takes blood, sweat and enough tears to wash away the blood.
{quote} It's a relict from the 70s/80s when computer power to calculate an EMA was rare. Not used anymore. SMMA(n) = EMA(2*n-1) You don't need a long timeseries of values as my fore poster hints at to calculate an EMA. Every EMA can be expressed as a filter and may be calculated easily by // EMA(5) periods = 2/alpha - 1; alpha = 2/(periods+1) Here alpha is the weight of the current bar, the weight of the previous bar is "1-alpha". Bottom line and in simple terms: An SMMA is just an EMA of a different period. Example: SMMA(10) is identical to EMA(21)....
