trader_bbands(3) php man page | unix.com

TRADER_BBANDS(3)							 1							  TRADER_BBANDS(3)

trader_bbands - Bollinger Bands

SYNOPSIS
       array trader_bbands (array  $real, [integer  $timePeriod], [float  $nbDevUp], [float  $nbDevDn], [integer  $mAType])

DESCRIPTION
PARAMETERS
	      o $real
		- Array of real values.

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

	      o $nbDevUp
		- Deviation multiplier for upper band. Valid range from TRADER_REAL_MIN to TRADER_REAL_MAX.

	      o $nbDevDn
		- Deviation multiplier for lower band. Valid range from TRADER_REAL_MIN to TRADER_REAL_MAX.

	      o $mAType
		- Type of Moving Average. TRADER_MA_TYPE_* series of constants should be used.

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

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