title: Delete closing values
body: <p>I have dataframe (see Figure) with float values (latitude/longitude) and I want to delete closest values with accuracy 0.02. For example:</p>
  
  <pre><code>[0.03, 0.05, 0.04, 0.06] -&gt; [0.04]
  </code></pre>
  
  <p>How can I do it with pandas methods?</p>
  
  <p><a href="https://i.stack.imgur.com/NkF4U.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NkF4U.png" alt="enter image description here"></a>  </p>