trader_stddev
PECL trader >= 0.2.0
trader_stddev - Standard Deviation
Manual
trader_stddev(
array$real,
[int$timePeriod],
[float$nbDev] ): array
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.