title: Word Cloud from a character string
body: <p>I'm trying to make my first word cloud and am a little overwhelmed by something I thought would be simple. I have a vector of strings of text and would like to make a word cloud from them. I would like 2 approaches:
  (1) just mush all of the strings together with paste(x, collapse= " ")
  and also (although this is lower priority)
  (2) I don't want one string to dominate the others so I would like to have its unique words only have weight one. For example, if one string has the same word many times, I would still like that just to count as one.</p>
  
  <p>I've looked at the <code>tm</code> and <code>wordcloud</code> packages but they all seem designed for more complicated tasks. I can't figure out how to construct a <code>Corpus</code> object out of my data.</p>
  
  <p>How can I get started? Here is an example vector in case it helps:</p>
  
  <pre><code>example &lt;- c("this is a string of text", "another string of text", "one more string of text. This could be a few sentences long", "it looks like string is occurring a lot of times", "I hope this example is long enough. If not I can write more sentences")
  </code></pre>