title: word association - findAssocs and numeric (0)
body: <p>I'm just getting to grips with the <code>tm</code> package in R.</p>
  
  <p>Probably a simple question, but trying to use the <code>findAssocs</code> function to get an idea for word associations in my customer enquiries insight document and I can't seem to get <code>findAssocs</code> to work correctly.</p>
  
  <p>When I use the following:</p>
  
  <pre><code>findAssocs(dtm, words, corlimit = 0.30)
   $population
    numeric(0)
  
   $migration
   numeric(0)
  </code></pre>
  
  <p>What does this mean? <code>Words</code> is a character vector of 667 words - surely there must be some correlative relationships?</p>