Trader Funções
PHP Manual

trader_rocp

(PECL trader >= 0.2.0)

trader_rocpRate of change Percentage: (price-prevPrice)/prevPrice

Descrição

array trader_rocp ( array $real [, integer $timePeriod ] )

Parâmetros

real

Array of real values.

timePeriod

Number of period. Valid range from 2 to 100000.

Valor Retornado

Returns an array with calculated data or false on failure.


Trader Funções
PHP Manual