title: How to remove coordinate in pie-chart generated by ggplot2
body: <p>Given this data:</p>
  
  <pre><code>abTcells    1456.74119
  Macrophages 5656.38478
  Monocytes   4415.69078
  StemCells   1752.11026
  Bcells  1869.37056
  gdTCells    1511.35291
  NKCells 1412.61504
  DendriticCells  3326.87741
  StromalCells    2008.20603
  Neutrophils 12867.50224
  </code></pre>
  
  <p>This plot:
  <img src="https://i.stack.imgur.com/xj5nY.jpg" alt="enter image description here"></p>
  
  <p>Is generated with the following code:</p>
  
  <pre><code>library(ggplot2)                  
  df &lt;- read.table("http://dpaste.com/1697602/plain/");
  ggplot(df,aes(x=factor(1),y=V2,fill=V1))+
     geom_bar(width=1,stat="identity")+coord_polar(theta="y")
  </code></pre>
  
  <p>How can I remove the following:</p>
  
  <ol>
  <li>Circular coordinate, e.g. (0, 10000, 20000,30000)</li>
  <li>Y axis coordinate (e.g. 1)</li>
  <li>White circle.</li>
  </ol>