|  | ## Performance (Attribute Count)

#### Synopsis

This operator created a performance vector containing the number of features of the input example set.

#### Description

Returns a performance vector just counting the number of attributes currently used for the given example set.

#### Input

- example set: expects: ExampleSet
- performance: expects: PerformanceVector

#### Output

- performance:
- example set:

#### Parameters

- optimization direction: Indicates if the fitness should be maximal for the maximal or for the minimal number of features.

#### ExampleProcess