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kitallis/word_histogram.rb

Created August 14, 2009 18:32
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word_histogram.rb
# Creates a little histogram of the frequency of words occuring in your string
# Usage : ruby word_histogram.rb "Test string, string"
a=(ARGV[0].split(/[^\w]/).inject(Hash.new(0)){|h,x|h[x.downcase]+=1;h;}.delete_if{|k,v|k==""}.sort_by{|k,v| k.length}.reverse);a.map{|k,v|puts "=> #{k} ".ljust(a.first[0].size+4)+'*'*v+"\n"}
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