title: Create bubble chart with biggest bubble at the center
body: <p>I'm trying to create a bubble chart using a set of data as follows:</p>
  
  <pre><code>X --&gt; 10
  Y --&gt; 20
  Z --&gt; 5
  Q --&gt; 10
  </code></pre>
  
  <p>I simply need to have the biggest bubble (based on its number) to be at the centre (give or take) and the rest of the bubbles be around it without overlapping.</p>
  
  <p>All of the R examples I have seen require a two dimensional dataset, and since the data I have are only one dimensional, I like to know if it's at all possible to create such graphs in R.</p>
  
  <p>It would be great if someone could suggest me some useful hints or so. By the way for this task I need to use a <code>SA tools</code> so something like <code>d3js</code> is out of options. However, I am open to using a tool other than R.</p>
  
  <p>I wasn't quite sure if this question should be asked in On <a href="http://stackoverflow.com">Stack Overflow</a> or <a href="http://stats.stackexchange.com">Cross Validated</a>, so if moderators believe it doesn't belong here, I'll remove it.</p>