Calculating basic Statistics

Functions
double	gstlrn::Db::getMinimum (const String &name, bool useSel=false) const
double	gstlrn::Db::getMaximum (const String &name, bool useSel=false) const
	gstlrn::Db::getRange (const String &name, bool useSel=false) const
double	gstlrn::Db::getMean (const String &name, bool useSel=false) const
double	gstlrn::Db::getVariance (const String &name, bool useSel=false) const
double	gstlrn::Db::getStdv (const String &name, bool useSel=false) const
double	gstlrn::Db::getCorrelation (const String &name1, const String &name2, bool useSel=false) const

Detailed Description

Calculate some basic statistics on the active samples of variables stored in a Db.

Parameters

name	Target variable name
name1	First target variable name
name2	Second target variable name
useSel	When TRUE, the statistics are derived from the only active samples

Function Documentation

getCorrelation()

double gstlrn::Db::getCorrelation	(	const String &	name1,
		const String &	name2,
		bool	useSel = false
	)		const

Returns the correlation coefficient between two target variables

getMaximum()

double gstlrn::Db::getMaximum	(	const String &	name,
		bool	useSel = false
	)		const

Returns the maximum of the target variable

getMean()

double gstlrn::Db::getMean	(	const String &	name,
		bool	useSel = false
	)		const

Returns the mean of the target variable

getMinimum()

double gstlrn::Db::getMinimum	(	const String &	name,
		bool	useSel = false
	)		const

Returns the minimum of the target variable

getRange()

gstlrn::Db::getRange	(	const String &	name,
		bool	useSel = false
	)		const

Returns a vector containing the minimum and maximum of the target variable

getStdv()

double gstlrn::Db::getStdv	(	const String &	name,
		bool	useSel = false
	)		const

Returns the standard deviation (square root of the variance) of the target variable

getVariance()

double gstlrn::Db::getVariance	(	const String &	name,
		bool	useSel = false
	)		const

Returns the variance of the target variable