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rSFA (version 1.5)

sfaExpand: Degree 2 Expansion

Description

Expand a signal in the space of polynomials of degree 2. This is the default expansion function used by rSFA.

Usage

sfaExpand(sfaList, DATA)

Arguments

sfaList

A list that contains all information about the handled sfa-structure

DATA

Input data, each column a different variable

Value

expanded matrix DATA

See Also

sfa2 nlExpand xpDim