title: Graphics with dataframe
body: <p>I have a table with export of every EU country:</p>
  
  <pre><code>country 2001  2002  2003  .....
  france  12023 54554 251515 ....
  .....
  </code></pre>
  
  <p>I would like to do a plot with the value of every years for 4 country (e.g. Germany, Italy, France, Netherlands). It's a dataframe I have tried with those commands:</p>
  
  <pre><code>y&lt;-ts(EXEU)
  y
  plot(y[5,],type="o")
  </code></pre>
  
  <p>But when I use <code>ts</code> I lose all the name of the countries and I have on the x-axis frequency not every years. It's possible to do the same without use <code>ts()</code>.</p>