title: How to install the fftw3 package of R in ubuntu 12.04?
body: <p>I am trying to install the fftw3 package through R console</p>
  
  <pre><code>&gt;install.packages("fftw")
  </code></pre>
  
  <p>After this command it is asking to select the cran mirror.I have selected the cran mirror then following error occurs:</p>
  
  <pre><code>Loading Tcl/Tk interface ... done
  Warning: unable to access index for repository http://ftp.iitm.ac.in/cran/src/contrib
  Warning messages:
  1: In open.connection(con, "r") :
  unable to connect to 'cran.r-project.org' on port 80.
  2: In getDependencies(pkgs, dependencies, available, lib) :
  package ‘fftw’ is not available (for R version 2.14.1)
  </code></pre>
  
  <p>And When I am trying for fftw3 then following error occurs:</p>
  
  <pre><code>&gt; install.packages("fftw3")
  Installing package(s) into ‘/root/R/x86_64-pc-linux-gnu-library/2.14’
  (as ‘lib’ is unspecified)
  Warning: unable to access index for repository http://ftp.iitm.ac.in/cran/src/contrib
  Warning message:
  In getDependencies(pkgs, dependencies, available, lib) :
  package ‘fftw3’ is not available (for R version 2.14.1)
  </code></pre>
  
  <p>Can anyone help me out of this?</p>