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trader_roc

(PECL trader >= 0.2.0)

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

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

Parameters:

real

Array of real values.

timePeriod

Number of period. Valid range from 2 to 100000.

Returns:

Returns an array with calculated data or false on failure.

Links:

http://php.net/manual/en/function.trader-roc.php

doc_php

2016-02-24 16:02:53

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