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