trader_roc(3) php man page | unix.com

TRADER_ROC(3)								 1							     TRADER_ROC(3)

trader_roc - Rate of change : ((price/prevPrice)-1)*100

SYNOPSIS
       array trader_roc (array	$real, [integer  $timePeriod])

DESCRIPTION
PARAMETERS
	      o $real
		- Array of real values.

	      o $timePeriod
		- Number of period. Valid range from 2 to 100000.

RETURN VALUES
       Returns an array with calculated data or false on failure.

PHP Documentation Group 													     TRADER_ROC(3)