title: adjusting x-axis in R histograms
body: <p>This histogram is really ugly:</p>
  
  <pre><code>hist(rbinom(10000, 20000, 0.0001),freq=F,right=F)
  </code></pre>
  
  <p>I don't want spaces between my bars. I tried different <code>breaks=</code> methods but they all produce similar results. Any ideas?</p>
  
  <p>I also want each bin value (or mean values )to be printed under the <strong>center</strong> of it's bar.</p>