title: How to use mutate to create a variable that will give me a the dates for a week in R?
body: <p>this is my data. my dates are in year-month-day format</p>
  <pre><code>Date
  2020-01-02 
  2020-01-05
  2020-01-07
  2020-01-08
  2020-01-10
  2020-01-15
  2020-01-16
  </code></pre>
  <p>I want to create a new column that will tell me what range of dates of that falls on that follows the calendar system.</p>
  <pre><code>Date             Range
  2020-01-02       01/01-01/03
  2020-01-05       01/05-01/11
  2020-01-07       01/05-01/11
  2020-01-08       01/05-01/11
  2020-01-10       01/05-01/11
  2020-01-15       01/12-01/18
  2020-01-16       01/12-01/18
  </code></pre>
  <p>How can i do this?</p>