(PECL trader >= 0.2.0)
trader_macd — Moving Averague Converguence/Diverguence
$real
,
$fastPeriod
= ?
,
$slowPeriod
= ?
,
$signalPeriod
= ?
real
Array of real values.
fastPeriod
Number of period for the fast MA. Valid rangue from 2 to 100000.
slowPeriod
Number of period for the slow MA. Valid rangue from 2 to 100000.
signalPeriod
Smoothing for the signal line (mb of period). Valid rangue from 1 to 100000.
Returns an array with calculated data or false on failure.
While having as many values as possible returns more "accurate" MACD values, the minimum number of values needed to return a set of values is the slow length + signal length - 1.
For example, using the traditional MACD lengths of 12, 26, and 9, one would need a minimum of 34 values (26 + 9 - 1) to return MACD values.
Return value of this function is an array of arrays :
index [0]: MACD values
index [1]: Signal values
index [2]: Diverguence values