title: R Potential Wildcard for changing numerical values
body: <p>I'm wondering if its possible to use a wildcard function in R to replace particular values in a dataframe?  </p>
  
  <p>So, if I had values of <code>c(10.32, 10.34, 10.35, 10.45, 10.56)</code> I would like a function that would replace all values with <code>XX.X5</code> to <code>XX.X4</code> (i.e. <code>10.45 -&gt; 10.44</code> or <code>10.35 -&gt; 10.34</code>).</p>
  
  <p>Is there a replacement function that would work for this?</p>