<p>This issue seems to come up regularly in various forms, so it's clearly an issue where there isn't a perfect SE solution.  With respect to what's on-topic on CV, my own decision process (for what it's worth--nobody is obligated to agree with me) is rather simple:  <em>what does the OP need explained to them</em>?  If the answer is a statistical concept, the question belongs on CV; if the answer is something about how <code>R</code> works / how to work with <code>R</code>, then it doesn't (for more, see my answer <a href="https://stats.meta.stackexchange.com/questions/1616/what-happened-to-the-idea-to-start-an-r-specific-stackexchange-site/1620#1620">here</a>).  For the most part, the latter option tends to mean that the question is essentially a <em>coding</em>-based issue and SO is the logical destination.  However, it is certainly possible that a given question is off-topic for <em>both</em> CV &amp; SO.  The next most logical destination for <code>R</code> questions is the <a href="https://stat.ethz.ch/mailman/listinfo/r-help" rel="nofollow noreferrer">r-help listserve</a>.  I recognize the frustration that goes with having a question and having difficulty getting the information you need, but the SE ecosystem has a certain specific design, purpose and limits; it cannot serve all types of questions that can be asked.  </p>
