title: R dataset not found?
body: <p>I'm trying to load the dataset <a href="https://www.rdocumentation.org/packages/cluster.datasets/versions/1.0-1/topics/life.expectancy.1971" rel="nofollow noreferrer">life.expectancy.1971</a>
  , but seem to have trouble loading it. I'm inputting</p>
  
  <pre><code>data(life.expectancy.1971)
  life.expectancy.1971
  </code></pre>
  
  <p>and keep getting the following error:</p>
  
  <blockquote>
    <p>data set �life.expectancy.1971� not foundError: object 'life.expectancy.1971' not found.</p>
  </blockquote>
  
  <p>I'm still pretty new to R so it could be a simple error on my part, but I haven't been able to figure out what's wrong since that has worked for loading other datasets. Can anyone help me figure out what I'm missing?</p>