title: Trouble creating an R package with _roxygen2_
body: <p>I am having trouble creating an R package with <em>roxygen2</em> . Here is my code:</p>
  
  <pre><code>require(devtools)
  require(roxygen2)
  setwd("C://Users//pfeiffer.s@pg.com//Documents//sp th//R stuff")
  create("myfunctions")
  </code></pre>
  
  <p>At this point, I used Windows File Explorer to add .R files to the folder "R" within the folder "myfunctions".</p>
  
  <pre><code>setwd("C:/Users/pfeiffer.s@pg.com/Documents/sp th/R stuff//myfunctions")
  document()
  setwd("C:/Users/pfeiffer.s@pg.com/Documents/sp th/R stuff")
  install("myfunctions")
  </code></pre>
  
  <p>Everything appeared to work properly, but:</p>
  
  <pre><code>?vectorize #one of the .R files I added
  </code></pre>
  
  <blockquote>
    <p>No documentation for ‘vectorize’ in specified packages and libraries:
    you could try ‘??vectorize’</p>
  </blockquote>