Class: FSelector::Random

Inherits:

Base

• Object
• Base
• FSelector::Random

Defined in:

lib/fselector/algo_both/Random.rb

Overview

ref: An extensive empirical study of feature selection metrics for text classification

Instance Method Summary

• #initialize(seed = nil, data = nil) ⇒ Random constructor

  initialize from an existing data structure.

Methods inherited from Base

#algo_type, #each_class, #each_feature, #each_sample, #get_class_labels, #get_classes, #get_data, #get_data_copy, #get_feature_ranks, #get_feature_scores, #get_feature_type, #get_feature_values, #get_features, #get_opt, #get_sample_size, #select_feature!, #select_feature_by_rank!, #select_feature_by_score!, #set_classes, #set_data, #set_feature_type, #set_features, #set_opt

Methods included from ReplaceMissingValues

#replace_by_fixed_value!, #replace_by_knn_value!, #replace_by_mean_value!, #replace_by_median_value!, #replace_by_most_seen_value!

Methods included from FileIO

#data_from_csv, #data_from_libsvm, #data_from_random, #data_from_url, #data_from_weka, #data_to_csv, #data_to_libsvm, #data_to_weka

Constructor Details

#initialize(seed = nil, data = nil) ⇒ Random

initialize from an existing data structure

Parameters:

• seed (Integer) (defaults to: nil) —

  seed form random number generator. provided for reproducible results, otherwise use current time as seed

# File 'lib/fselector/algo_both/Random.rb', line 24

def initialize(seed=nil, data=nil)
  super(data)
  
  srand(seed) if seed
end