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(PECL trader >= 0.2.0)
trader_plus_dm — Plus Directional Movement
$high
, array $low
[, integer $timePeriod
] )
highHigh price, array of real values.
lowLow price, array of real values.
timePeriodNumber of period. Valid range from 2 to 100000.
Returns an array with calculated data or false on failure.