Installing plyrmr

The plyrmr package provides common operations (as found in plyr or reshape2) for users to easily perform data manipulation through the MapReduce framework. In this recipe, we will introduce how to install plyrmr on the Hadoop system.

Getting ready

Ensure that you have completed the previous recipe by starting the Cloudera QuickStart VM and connecting the VM to the Internet. Also, you need to have the rmr2 package installed beforehand.

How to do it...

Perform the following steps to install plyrmr on the Hadoop system:

  1. First, you should install libxml2-devel and curl-devel in the Linux shell:
    $ yum install libxml2-devel
$ sudo yum install curl-devel
  2. You can then access R and install the dependent packages:
    $ sudo R
> Install.packages(c(" ...

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