Feature construction


These components produce new attribute, automatically or not, from available attributes.

Attributes status

Generally none.

Feature construction components

Component Description Parameters Note

Create a new attribute from algebraic formula. - Algebraic formula, constants, math operators such as log, .... Continuous attributes only.

EqFreq Disc
Equal-frequence binning discretization - Number of intervals. Continuous INPUT attributes only.

EqWidth Disc
Equal-width binning discretization. - Number of intervals. Continuous INPUT attributes only.

Fayyad and Irani's state-of-the art supervised univariate discretization. Continuous INPUT attributes only are discretized, because this method is supervised, you have to specify a discrete TARGET attribute.

Standardization of attributes. - Standardization function. Continuous INPUT attributes only.

Last modification : April 18th, 2004.