title: what are some alternative for profiling a R code beside Rprof?
body: <p>I am new to profiling in <code>R</code> after some googling, <code>Rprof</code> seems to be a really good package to do that.
  but when I try to install it, it gives me the below error:</p>
  
  <pre><code>Warning in install.packages :
    package ‘Rprof’ is not available (for R version 3.1.2)
  </code></pre>
  
  <p>so, is there any as good alternative package exist? or what is the R version which its work on , as there is no information about it in <a href="https://stat.ethz.ch/R-manual/R-devel/library/utils/html/Rprof.html" rel="nofollow">here</a></p>
  
  <p>Thank you in advance</p>