title: ggplot2 y axis label decimal precision
body: <p>I am plotting several ggplot charts in a loop (i know, i know don't loop use plyr...but) and was curious if there was a way to set the decimal precision to say one decimal (i.e. 0.0).  I am using the following scale transformation.</p>
  
  <pre><code>p &lt;- p + scale_y_log10()
  </code></pre>
  
  <p>Any help would be appreciated.</p>