title: Caption in longtable
body: <p>I find that the caption in my longtable takes two lines but it seems that it can fit in one line. See the figure below:
  <a href="https://i.stack.imgur.com/IuSC3.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IuSC3.png" alt="alt text"></a>
  </p>
  
  <p>My code is:</p>
  
  <pre><code>\begin{longtable}{|c|c|c|c||c|c|c|}  
  \caption{Testing error for training size 100000 and 8000 random counts}\\  
  \hline  
  \multicolumn{2}{|c|}{Concept} &amp; \multicolumn{2}{c||}{Negative Class} &amp; \multicolumn{2}{c|}{Positive Class} &amp; Error rate \\  
  \hline  
  ...  
  \end{longtable}
  </code></pre>
  
  <p>How to make the caption fit into a single line?</p>
  
  <hr>
  
  <p>EDIT:</p>
  
  <p>Thank, Geoff. But I tried "\usepackage{fullpage}" as you suggested, the whole content in the pdf file is messed up.   </p>
  
  <p>As you can see, there is still lot of space on the left of the caption. If the caption can be moved to the left, it will fit into a single line.</p>