Feature selection

Concepts

These components modify, automatically or not, attributes status. They generally reduce "input" attributes set.

Attributes status

Define Status has a very particular function in the stream diagram. Others components work as other components.

Feature selection components

Component Description Parameters Note

Define status
Allow to define the status of attributes (target, input, illustrative) in the stream diagram. This component is of primary importance in the stream diagram. 3 possible status : (a) target, (b) input, (c) illustrative.

An attribute can have several status , in some clustering algorithms for instance.
- It is the only component which has a short cut in the toolbar.

Last modification : January 21st, 2004.