title: random sampling 100 times and placing datasets into a list
body: <p>I have a dataset with multiple ID's that looks like this (shortened version):</p>
  <pre><code>  ID        Value
    bear 1      1
    bear 1      2
    bear 1      5
    bear 2      2
    bear 2      3
    bear 2      1
    bear 2      1
    bear 2      4
  </code></pre>
  <p>I would like to sample one row per ID number and make those rows into a data frame, like this for example:</p>
  <pre><code>  ID        Value
  
    bear 1      2
    bear 2      1
  </code></pre>
  <p>I then want to this random sampling 100 times, take the resulting 100 datasets and make them elements in a list.</p>
  <p>Any thoughts on how to do this? Either using some of the apply()/lapply()/sapply() functions or a loop?</p>