gistfile1.txt

neil-kodners-MacBook-Pro:r_recommendation_system nkodner$ ls
README.markdown		data			extract_graphs.R	get_packages.R		install_packages.R	model_assessment.R
cran			example_model.R		get_maintainers.R	get_views.rb		lib
neil-kodners-MacBook-Pro:r_recommendation_system nkodner$ R

R version 2.11.1 (2010-05-31)
Copyright (C) 2010 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> source('example_model.R')
Loading required package: testthat
Loading required package: yaml
Loading required package: foreign
Loading required package: plyr

Attaching package: 'reshape'

The following object(s) are masked from 'package:plyr':

    round_any

Loading required package: grid
Loading required package: proto
Loading data set: core
Loading data set: depends
Loading data set: imports
Loading data set: maintainers
Loading data set: packages
Loading data set: recommended
Loading data set: suggests
Loading data set: training.data
Loading data set: views
Error in eval.with.vis(expr, envir, enclos) : 
  object 'installations' not found
>