Calculating correlations on variables of a Db

Functions
VectorDouble	Db::statisticsMulti (const VectorString &names, bool flagIso=true, bool verbose=false, const String &title="")
VectorDouble	Db::statisticsMultiByUID (const VectorInt &iuids, bool flagIso=true, bool verbose=false, const String &title="")

Detailed Description

These functions calculate the correlation matrix based on a set of variables contained in a Db. Although the result stands as a matrix, they are returned as a Vector.

Parameters

names	Vector of target variable names
iuids	Vector of user-designation ranks
flagIso	The statistics are calculated only for samples where all target variables have defined values
verbose	Verbose flag
title	If verbose, the title of the printed statistics.

Returns

These functions return a vector containing the correlation matrix.

Function Documentation

statisticsMulti()

VectorDouble Db::statisticsMulti	(	const VectorString &	names,
		bool	flagIso = true,
		bool	verbose = false,
		const String &	title = ""
	)

The target variables are referred to by their names

statisticsMultiByUID()

VectorDouble Db::statisticsMultiByUID	(	const VectorInt &	iuids,
		bool	flagIso = true,
		bool	verbose = false,
		const String &	title = ""
	)

The target variables are referred to by their user-designation ranks