title: Data Analysis and Processing of Variables and their Concreteness
body: <p>I have a variable_text file with 100K variables (some unique, some not) and an excel file with (unique) variables in one column and their respective concreteness values in another column. I already wrote some code to read the variables from the text file and search their concreteness value from the excel file and spit out the results in another result_text file.</p>
  
  <p>My problem is I need to use an appropriate data structure to store the variables and their concreteness and count the frequency of repeating variables from the variable_text file. I've looked at HashTables and HashMaps but dont know if I should chose from these or if there's another viable option.</p>
  
  <p>This data structure must represent a sort of table or map:</p>
  
  <p>Variable | Frequency | Concreteness</p>