def STDDEV(ds, count, timeperiod=(- (2 ** 31)), nbdev=(-4e+37)):
 return call_talib_with_ds(ds, count, talib.STDDEV, timeperiod, nbdev)

def STDDEV ( ds , count , timeperiod = ( - ( 2 ** 31 ) ) , nbdev = ( - 4e+37 ) ) : return call_talib_with_ds ( ds , count , talib . STDDEV , timeperiod , nbdev )
standard deviation .