diff --git a/sorter.rb b/sorter.rb
index ad0f22b..09f9826 100755
--- a/sorter.rb
+++ b/sorter.rb
@@ -13,9 +13,7 @@
 # The output file is single-line JSON, use jq to format for reading.       #
 #                                                                          #
 #To Do:                                                                    #
-# * Fix word count                                                         #
 # * add frequency                                                          #
-# * split by dates for progress notes                                      #
 ############################################################################
 require 'json'
 require 'pp'
@@ -141,6 +139,7 @@ def process_file (file_name, binfile, type)
       output[key] = Hash.new
       output[key][:words] = bin_counter(bins[bin_number], text)
       output[key][:total] = count_total(output[key])
+      output[key][:frequency] = output[key][:total].to_f / output[:total_words].to_f
     end
     write_output_json(output,outfile + '-out.json')
     write_output_csv(output,outfile + '-out.csv')
@@ -162,6 +161,7 @@ def process_file (file_name, binfile, type)
         output[key] = Hash.new
         output[key][:words] = bin_counter(bins[bin_number], text)
         output[key][:total] = count_total(output[key])
+        output[key][:frequency] = output[key][:total].to_f / output[:total_words].to_f
       end
       write_output_json(output,outfile + '-out.json')
       write_output_csv(output,outfile + '-out.csv')
@@ -191,8 +191,10 @@ def generate_master_output(dir_name, binfile)
     num += 1
     words_head = "Bin " + num.to_s + " words"
     total_head = "Bin " + num.to_s + " total"
+    freq_head = "Bin " + num.to_s + " frequency"
     bin_header.push(words_head)
     bin_header.push(total_head)
+    bin_header.push(freq_head)
   end
   CSV.open('master.csv', 'wb') do |csv|
     header = ["File", "Total Words" ] + bin_header
@@ -209,6 +211,7 @@ def generate_master_output(dir_name, binfile)
       data_hash.each_key do |key|
         csv_row.push(data_hash[key]["words"])
         csv_row.push(data_hash[key]["total"])
+        csv_row.push(data_hash[key]["frequency"])
       end
       csv << csv_row
     end