load all .cdv files in /data folder. source: http://www.johnmyleswhite.com/notebook/2010/09/19/why-use-projecttemplate-or-any-other-framework/

load_all_csv.R

data.files <- dir('data')
for (data.file in data.files)
{
  filename <- file.path('data', data.file)
  variable.name <- sub('\\.csv$', '', data.file, ignore.case = TRUE, perl = TRUE)
  assign(variable.name, read.csv(filename, header = TRUE, sep = ','))
}