gistfile1.rb

require 'narray'

def LoadMatrix(filename, type = :numbers)
  case type
  when :numbers
    LoadMatrix.load_numbers(filename)
  when :dna
    LoadMatrix.load_dna(filename)
  when :cubes
    LoadMatrix.load_cubes(filename)
  when :labels
    LoadMatrix.load_labels(filename)
  end
end

module LoadMatrix

  def load_numbers(filename)
    matrix = []
		File.open(filename) do |file|
  		file.each_line do |line|
    		ary = []
				line.split(" ").each{ |n| ary << n.to_f }
    		matrix << ary
  		end
		end
		matrix = NArray.to_na(matrix)
		matrix = matrix.transpose
	end

	def load_dna(filename)
		matrix=[]
		File.open(filename) do |file|
			file.each_line do |line|
				line.split("\n").each{|n| matrix << n }
			end
		end
		matrix
	end


	def load_cubes(filename)
		matrix=[]
		File.open(filename) do |file|
			file.each_line do |line|
				line.split("\n").each{|n| matrix << n }
			end
		end
		matrix
	end


	def load_labels(filename)
		matrix = []
		File.open(filename) do |file|
  		file.each_line do |line|
    		ary = []
				line.split(" ").each{ |n| ary << n.to_f }
    		matrix << ary
  		end
		end
		matrix = NArray.to_na(matrix)
		matrix = matrix.reshape(1, matrix.total)
  end

  extend self
end