title: How to changes words in a charts title based on condition?
body: <p>I would like the title of my plot to change based on if the supply is over or under the estimate. The estimate of the supply is in DF$Supply.. If it is positive its over the estimate and if it is negative it's under the estimate. How can i set up the condition to check the DF$Supply and chose the right title.</p>
  <p>If the supply is OVER the estimate i would like the title to be this:</p>
  <pre><code>labs(title=paste(&quot;In 2021-2030 the supply is over the estimate by&quot;, DF$Supply)
  </code></pre>
  <p>If the supply is UNDER the estimate i would like the title to be this:</p>
  <pre><code>labs(title=paste(&quot;In 2021-2030 the supply is under the estimate by&quot;, DF$Supply*-1)
  </code></pre>
  <p>If the supply is equal to the estimate the title is (this means that DF$Supply = 0):</p>
  <pre><code>labs(title=&quot;In 2021-2030 the supply matches the estimate&quot;)
  </code></pre>