title: Concatenating characters in R
body: <p>I have a set of characters "A" "B" "C" and I want them to become one word "ABC", with no spacing. When I use</p>
  
  <pre><code>paste('A','B','C',collapse='')
  [1] "A B C "
  </code></pre>
  
  <p>I get this, however I do not want any spacing. I want it to be "ABC"</p>