title: Installing R packages for old R version without sudo privelages
body: <p>I am running on a computer without sudo privileges with R version 2.13.1 installed, and I want to install a package (Rcpp).  If I try to install the package via install.packages()</p>
  
  <p>I get </p>
  
  <pre><code> package ‘Rcpp’ is not available (for R version 2.13.1)
  </code></pre>
  
  <p>I think because by default in CRAN requires R version 2.15 and up.</p>
  
  <p>I can't update my R version as I'm not superuser. Is there anyway way (without sudo) to install and old version of Rcpp for my old R version?</p>