title: Crosstabs Using R
body: <p>I have a data frame with columns of Age_group(10 to 20,20 to 30,30 to 40,40 to 50) 60), Tenure(1:5) and Response(True or False )how to create a table which gives me count of true for each group and tenure.</p>
  
  <p>For eg  </p>
  
  <pre><code>       1 2 3 4 5 
  10-20  
  20-30  Count of True's
  30-40  
  40-50
  </code></pre>