title: How to reference a data file not in a working directory
body: <p>I'm using R and I know how to define a working directory:</p>
  
  <pre><code>setwd("C:/temp/")
  </code></pre>
  
  <p>I have a data file that is not in this folder.  How can I access it?  In SAS, it would be this:</p>
  
  <pre><code>libname x1 "C:\temp";
  libname x2 "C:\temp\data folder";
  </code></pre>