title: How to use SAS to count the frequency of each observation in a column as in R
body: <p>I simply want to know the total frequency of each variable as in R table(). Can I do that in SAS?</p>
  
  <p>I have a SAS dataset as following.</p>
  
  <pre><code>data level_score;
  infile datalines;
  input ID $ Level $ SCORE;
  return;
  datalines;
  
      1   A2   0.2
      2   A3   0.8
      3   A4   0.3
      4   A5   0.2
      5   A6   0.2
      6   A3   0.6
      7   A4   0.2
      8   A5   0.6
      9   A6   0.2
  ;
  run;
  
  proc print data=level_score;
  run;
  </code></pre>
  
  <p>I want to use SAS to know the frequency of Level and SCORE as in R table()</p>
  
  <p>For variable 'Level'</p>
  
  <pre><code>A2 A3 A4 A5 A6
   1  2  2  2  2
  </code></pre>
  
  <p>For variable 'SCORE'</p>
  
  <pre><code>0.2 0.3 0.6 0.8
    5   1   2   1
  </code></pre>