(PECL trader >= 0.2.0)
trader_macdfix — Moving Average Convergence/Divergence Fix 12/26
$real
   [, integer $signalPeriod
  ] )
real
    Array of real values.
signalPeriod
    Smoothing for the signal line (nb of period). Valid range from 1 to 100000.
Returns an array with calculated data or false on failure.