trader_stddev
Standard Deviation
Description
array trader_stddev(array $real, int $timePeriod = ?, float $nbDev = ?)
Parameters
-
real
-
Array of real values.
-
timePeriod
-
Number of period. Valid range from 2 to 100000.
-
nbDev
-
Return Values
Returns an array with calculated data or false on failure.