title: How do I convert a string into date and day in R
body: <p>I have a dataset with 10 columns, one of which is date in the following format</p>
  
  <pre><code>10-MAR-12 00.00.00.000000000
  </code></pre>
  
  <p>I would like to convert this into a data format which is read as a date and not as a string in the following format </p>
  
  <pre><code>10/03/12
  </code></pre>
  
  <p>I would also like there to be an additional column that says what day of the week it is</p>
  
  <p>I would then like to filter out certain days or dates and to create a subset of my data.</p>
  
  <p>I am a beginner to R so any help is appreciated</p>