title: cant install plyr package via command line or manually
body: <p>on typing </p>
  
  <pre><code>install.packages("ggplot2")
  </code></pre>
  
  <p>i get the following result:</p>
  
  <pre><code>Installing package into ‘/home/suraj/R/x86_64-pc-linux-gnu-library/3.0’
  (as ‘lib’ is unspecified)
  --- Please select a CRAN mirror for use in this session ---
  Warning: dependency ‘plyr’ is not available
  also installing the dependencies ‘reshape2’, ‘scales’
  ERROR: dependency ‘plyr’ is not available for package ‘reshape2’
  * removing ‘/home/suraj/R/x86_64-pc-linux-gnu-library/3.0/reshape2’
  ERROR: dependency ‘plyr’ is not available for package ‘scales’
  * removing ‘/home/suraj/R/x86_64-pc-linux-gnu-library/3.0/scales’
  ERROR: dependencies ‘plyr’, ‘reshape2’, ‘scales’ are not available for    package ‘ggplot2’
  * removing ‘/home/suraj/R/x86_64-pc-linux-gnu-library/3.0/ggplot2’
  
  The downloaded source packages are in
      ‘/tmp/RtmpSWlplq/downloaded_packages’
  Warning messages:
  1: In install.packages("ggplot2") :
     installation of package ‘reshape2’ had non-zero exit status
  2: In install.packages("ggplot2") :
    installation of package ‘scales’ had non-zero exit status
  3: In install.packages("ggplot2") :
    installation of package ‘ggplot2’ had non-zero exit status
  </code></pre>
  
  <p>when i tried to install 'plyr' package by first downloading the plyr package and the using </p>
  
  <pre><code>install.packages("plyr_1.8.2.tar.gz",repos=NULL,type="source")
  </code></pre>
  
  <p>i get the following message:</p>
  
  <pre><code>Installing package into ‘/home/suraj/R/x86_64-pc-linux-gnu-library/3.0’
  (as ‘lib’ is unspecified)
  ERROR: this R is version 3.0.2, package 'plyr' requires R &gt;= 3.1.0
  Warning message:
  In install.packages("plyr_1.8.2.tar.gz", repos = NULL, type = "source") :
   installation of package ‘plyr_1.8.2.tar.gz’ had non-zero exit status
  
  install.packages("plyr_1.8.2.tar.gz",repos=NULL)
   Installing package into ‘/home/suraj/R/x86_64-pc-linux-gnu-library/3.0’
   (as ‘lib’ is unspecified)
  ERROR: this R is version 3.0.2, package 'plyr' requires R &gt;= 3.1.0
  Warning message:
  In install.packages("plyr_1.8.2.tar.gz", repos = NULL) :
    installation of package ‘plyr_1.8.2.tar.gz’ had non-zero exit status
  </code></pre>
  
  <p>plase can anyone guide me in this matter!</p>