Class: Histogram

Inherits:
Array show all
Defined in:
lib/quality_extensions/histogram.rb

Overview

A histogram in this sense is an array of [value, frequency] pairs

Instance Method Summary collapse

Methods inherited from Array

#after, #average, #before, #classify, #delete_if!, #expand_ranges, #extract_options!, #group_by, #ljust_columns, #ljust_columns!, #ljust_rows, #ljust_rows!, #mean, #rjust_columns, #rjust_columns!, #rjust_rows, #rjust_rows!, #select_if!, #select_if_with_index!, #shell_escape, #sum, #to_a_recursive, #to_query_string, #to_range_list

Instance Method Details

#flatten ⇒ Object

Histogram.new([, [2,2], [3,5]).flatten

> [1, 2,2, 3,3,3,3,3]



15
16
17
18
19
20
21
 
# File 'lib/quality_extensions/histogram.rb', line 15

def flatten
  array = []
  each do |value, frequency|
    array.concat [value]*frequency
  end
  array
end