title: dplyr: select columns by position in NSE
body: <p>I am trying to create a function that will select columns in a DF based on their position. I will always need the first column and then a subset of the DF. I have 1 object for each subset I need to select.</p>
  
  <p>So far I have tried the following:</p>
  
  <pre><code>position &lt;- "1,28:31"
  DF %&gt;%
    select_(.dots = position)
  </code></pre>
  
  <p>but I receive the following error:</p>
  
  <blockquote>
    <p>Error in parse(text = x) : :1:2: unexpected 'x'</p>
  </blockquote>
  
  <p>It would seem the problem is the comma separation in the column position.</p>
  
  <p>Is there a workaround?</p>