php 한글 메뉴얼 도움말 검색 사이트 Percentage Price Oscillator [function.trader-ppo]

array trader_ppo ( array $real [, integer $fastPeriod [, integer $slowPeriod [, integer $mAType ]]] )

real: Array of real values.
fastPeriod: Number of period for the fast MA. Valid range from 2 to 100000.
slowPeriod: Number of period for the slow MA. Valid range from 2 to 100000.
mAType: Type of Moving Average. TRADER_MA_TYPE_* series of constants should be used.

Returns an array with calculated data or false on failure.