title: Making an axis give Natural Log instead of log10 when log = "y" in R plot
body: <h2>Background:</h2>
  <p>When we set <code>log = &quot;y&quot;</code> in an R <code>curve()</code> call, R converts the function to be plotted to output <code>log10</code> values of the function's original values (<em><strong>i.e., without needing to change the the original function to output <code>log10</code> values</strong></em>).</p>
  <h2>Question:</h2>
  <p>I was wondering if it might be possible to have R plot the <code>log</code> (i.e., natural log) of the function to be plotted (<em><strong>i.e., THIS TIME  without needing to change the original function to output <code>log</code> values</strong></em>)?</p>
  <h2>Example:</h2>
  <p>As an example, below, R is plotting the <code>log10</code> values of function <code>LF</code> only by setting <code>log = &quot;y&quot;</code> (<em><strong>without needing to change the <code>LF</code> function to output <code>log10</code> values</strong></em>). In the same manner, could we have R plot the <code>log</code> of the <strong>LF function (without needing to change the <code>LF</code> function to output <code>log</code> values)?</strong></p>
  <pre><code> LF = function(x) dnorm(250, x, 2)*dnorm(265, x, 2)*dnorm(259, x, 2)
  
   curve(LF, from = 250, to = 266, log = &quot;y&quot;)
  </code></pre>