title: Subset by highest value of a variable (R)
body: <p>How can I create a subset by the highest value of a certain variable in a data frame?</p>
  
  <p>I have the following dataframe, from which I want to extract the highest value of V1 by name:</p>
  
  <pre><code>   name V1 V2
  1 name1  1  f
  2 name1  2  b
  3 name1  5  c
  4 name2  3  f
  5 name2  8  g
  6 name2  2  m
  </code></pre>
  
  <p>The subset should look like this</p>
  
  <pre><code>   name V1 V2
  3 name1  5  c
  5 name2  8  g
  </code></pre>