INNER CODE UNIT · Ruby

idx

yoshoku/rumale · rumale-core/lib/rumale/dataset.rb:183

          idx = idx.to_i - adj_idx
          val = val.to_i.to_s == val ? val.to_i : val.to_f
          max_idx = idx if max_idx < idx
          ftvec.push([idx, val])
        end
        [label, ftvec, max_idx]
      end

      def parse_label(label)
        lbl_arr = label.split(',').map { |lbl| lbl.to_i.to_s == lbl ? lbl.to_i : lbl.to_f }
        lbl_arr.size > 1 ? lbl_arr : lbl_arr[0]
      end

      def convert_to_matrix(data, n_features, dtype)
        mat = []
        data.each do |ft|
          vec = Array.new(n_features) { 0 }
          ft.each { |el| vec[el[0]] = el[1] }

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