title: Using "rvest" scraping html table
body: <p>I try to using rvest package to scrape a table:</p>
  
  <pre><code>library(rvest)
  
  x &lt;- read_html ("http://www.jcb.jp/rate/usd04182016.html")
  x %&gt;% html_node(".CSVTable") %&gt;% html_table 
  </code></pre>
  
  <p>Url elements look likes:</p>
  
  <pre><code>&lt;table class="CSVTable"&gt;
   &lt;tbody&gt;...&lt;/tbody&gt;
   &lt;tbody class&gt;...&lt;/tbody&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>Why I occur the error "No matches"? </p>