Module: Punk::Dataset

Defined in:
lib/punks/dataset/dataset.rb

Class Method Summary collapse

Class Method Details

.read(path) ⇒ Object 



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# File 'lib/punks/dataset/dataset.rb', line 47

def self.read( path )
  rows = []
  
  ## check if path include wildcard (*)
  ##   e.g. './datasets/punks/*.csv'
  if path.index( '*' )    ## allow glob to read multiple files - keep? why? why not?
  #=> ["./datasets/punks/0-999.csv",
  #    "./datasets/punks/1000-1999.csv",
  #    "./datasets/punks/2000-2999.csv",
  #    "./datasets/punks/3000-3999.csv",
  #    "./datasets/punks/4000-4999.csv",
  #    "./datasets/punks/5000-5999.csv",
  #    "./datasets/punks/6000-6999.csv",
  #    "./datasets/punks/7000-7999.csv",
  #    "./datasets/punks/8000-8999.csv",
  #    "./datasets/punks/9000-9999.csv"]
    datasets = Dir.glob( path )
    datasets.each do |dataset|
      rows += read_csv( dataset )
    end
  else  ## "vanilla" (single) datafile
      rows += read_csv( path )
  end
  
  # puts "  #{rows.size} rows(s)"
  #=> 10000 rows(s)


  ### wrap in punk struct for easier access
  punks = rows.map { |row| Metadata.parse( row ) }
  punks
end