class Datasets::Wine
Constants
- Record
Public Class Methods
new()
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Calls superclass method
Datasets::Dataset::new
# File lib/datasets/wine.rb, line 22 def initialize super @metadata.id = 'wine' @metadata.name = 'Wine' @metadata.url = 'http://archive.ics.uci.edu/ml/datasets/wine' @metadata.description = -> { read_names } end
Public Instance Methods
each() { |record| ... }
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# File lib/datasets/wine.rb, line 30 def each return to_enum(__method__) unless block_given? open_data do |csv| csv.each do |row| next if row[0].nil? record = Record.new(*row) yield(record) end end end
Private Instance Methods
open_data() { |csv| ... }
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# File lib/datasets/wine.rb, line 53 def open_data data_path = cache_dir_path + 'wine.data' unless data_path.exist? data_url = 'http://archive.ics.uci.edu/ml/machine-learning-databases/wine/wine.data' download(data_path, data_url) end CSV.open(data_path, converters: %i[numeric]) do |csv| yield(csv) end end
read_names()
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# File lib/datasets/wine.rb, line 44 def read_names names_path = cache_dir_path + 'wine.names' unless names_path.exist? names_url = 'http://archive.ics.uci.edu/ml/machine-learning-databases/wine/wine.names' download(names_path, names_url) end names_path.read end