|  | ## Select by Random

#### Synopsis

This operator simply selects a random or a predefined number of random features.

#### Description

This operator selects a randomly chosen number of features randomly from the input example set. This can be useful in combination with a ParameterIteration operator or can be used as a baseline for significance test comparisons for feature selection techniques.

#### Input

- example set input: expects: ExampleSetMetaData: #examples: = 0; #attributes: 0

#### Output

- example set output:
- original:

#### Parameters

- use fixed number of attributes: Indicates if a fixed number of attributes should be selected.
- number of attributes: The number of attributes which should be randomly selected.
- use local random seed: Indicates if a local random seed should be used.
- local random seed: Specifies the local random seed

#### ExampleProcess