title: Making R-Package: NAMESPACE
body: <p>I am creating a R-package and I am at the step where I <code>BUILD</code> the package.</p>
  
  <p>I have read the
  <a href="http://cran.utstat.utoronto.ca/doc/manuals/r-release/R-exts.pdf" rel="noreferrer">Writing R Extensions</a> documentation about NAMESPACE (more specifically the sections 1.5.1 and 1.5.2 on import, export and on registering S3method). </p>
  
  <p>I am worrying about this step because when I <code>CHECK</code>my package I got this warning:</p>
  
  <blockquote>
    <p>Found the following apparent S3 methods exported but not registered:
       print.myClass print.myOtherClass summary.myClass summary.myOtherClass
    See section 'Registering S3 methods' in the 'Writing R Extensions'
    manual.</p>
  </blockquote>
  
  <p>Any help in deciphering what are the consequences of not registering a S3method and about the NAMESPACE file in general would make my day.</p>
  
  <p>Thanks for your help.</p>