Performance (Attribute Count)

Synopsis

This operator creates a performance vector containing the attribute count of the input ExampleSet.

Description

This is a very simple operator. It takes an ExampleSet as input and returns a performance vector that has the count of attributes in the given ExampleSet. Optionally, a performance vector can be provided as input as well. In that case the 'number of attributes' criteria is appended to the given performance vector.

Input

example set

This input port expects an ExampleSet. It is the output of the Subprocess operator in the attached Example Process.

performance

This optional port expects a performance vector. A performance vector is a list of performance criteria values.

Output

performance

The performance vector containing the 'number of attributes' criteria is returned through this port.

example set

ExampleSet that was given as input is passed without any modifications to the output through this port. This is usually used to reuse the same ExampleSet in further operators or to view the ExampleSet in the Results Workspace.

Parameters

优化方向

This is an expert parameter. It indicates if the fitness should be maximal for the maximal or the minimal number of features.