Question

class LineAnalyzer
  @@highest_wf_count = 0
  @@highest_wf_words = Array.new

  def highest_wf_count
    @@highest_wf_count
  end

  def higest_wf_words
    @@highest_wf_words
  end

  attr_accessor :linesCount, :content , :line_number
  @content
  @line_number

  def initialize(line,line_count)
    @content = line
    @line_number = line_count
    #* call the calculate_word_frequency() method.
    calculate_word_frequency()
  end

  def calculate_word_frequency()
     @@count = Hash.new(0)
     @content.split.each do |word|
      @@count[word.downcase] += 1
     end

     @@count.each_pair do |key, value| 
       if value > @@highest_wf_count 
         @@highest_wf_count = value
       end
     end

     @@count.each_pair do |key, value| 
       if value == @@highest_wf_count 
        @@highest_wf_words << key
       end
     end    
  end
end

#  Implement a class called Solution. 
class Solution 
    attr_accessor :highest_count_across_lines, :highest_count_words_across_lines
    @highest_count_across_lines = 0
    @highest_count_words_across_lines = Array.new()
    @@LineAnalyzers = Array.new

    def analyze_file
      line_count = 1
      x = File.foreach('C:\x\test.txt')
      x.each{ |line|
        @@LineAnalyzers << LineAnalyzer.new(line , line_count)
        line_count+=1
      } 
      puts @@LineAnalyzers.inspect
    end

    def calculate_line_with_highest_frequency
      @@LineAnalyzers.map { |line|
        #Here is the problem.... I need to assign values to @highest_counts_across_lines and @highest_count_words_across_lines
      }
    end 
end

我的问题是我有这个LineAnalyzers数组，我有最高_wf_count和highest_wf_words，我想将它们分配给@higest_count_across_lines和@highest_count_accross_words，我不知道如何在循环时访问LineAnalyzer属性解决方案类

Answer 1

这是Sergio Tulentsev解决的简短答案

word_freq = File.new(filename, 'r').each_with_object(Hash.new(0)) do |line, memo|
line.split.each {|word| memo[word] += 1 }
end

max = word_freq.values.max
most_frequent_words = word_freq.select {|k, v| v == max }.map[0]

如何在循环遍历对象数组时访问对象的属性？

1 个答案: