title: R: use magrittr pipe operator in self written package
body: <p>I would like to use the pipe-operator <code>%&gt;%</code> introduced in the <code>magrittr</code> package in a package I wrote myself to chain <code>dplyr</code> data transformations. <code>magrittr</code> is listed as <code>Import</code> in the <code>DESCRIPTION</code> file. After loading my own package and testing the function which uses the pipe-operator I get the following error message:</p>
  
  <blockquote>
    <p>Error in functionname(parameter,  :    could not find function "%>%"</p>
  </blockquote>
  
  <p>Changing <code>%&gt;%</code> to <code>magrittr::%&gt;%</code> in the function source code does not help either because the package cannot be built anymore. </p>