trader_roc
(PECL trader >= 0.2.0)
trader_roc — Rate of change : ((price/prevPrice)-1)*100
Опис
array trader_roc
( array
$real
[, integer $timePeriod
] )
Параметри
-
real -
Array of real values.
-
timePeriod -
Number of period. Valid range from 2 to 100000.
Значення, що повертаються
Returns an array with calculated data or false on failure.
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