how-to-make-stock-trading-system.dogwood008.com # csv_base.rb require 'csv' class CsvBase def initialize(file_path) @file_path = file_path end def each_line open(@file_path, 'r') do |f| CSV.foreach(@file_path, headers: header?, encoding: encoding) do |row| yield(row) end end end def header? raise N…
