Read EDF Header and Signal Header

tutorial_02.rb

# tutorial_02.rb
# sleepdata.org
# author: @remomueller
#
# Required Gems:
#
# gem install colorize edfize nsrr --no-document
#
# To Run Script:
#
# ruby tutorial_02.rb

require 'rubygems'
require 'colorize'
require 'edfize'
require 'nsrr'
require 'nsrr/commands/download'

Nsrr::Commands::Download.run(%w(download learn/polysomnography/edfs/learn-nsrr01.edf --token=public))

puts "EDFs Downloaded: #{Edfize.edf_paths.count}"
Edfize.edfs.each do |edf|
  puts "\nEDF                            : #{edf.filename}"
  puts "Total File Size                : #{edf.edf_size} bytes"
  puts "\nHeader Information"
  puts "\nGeneral Information"
  puts "Expected Size of Header (bytes): #{edf.expected_size_of_header}"
  puts "Expected Size of Data   (bytes): #{edf.expected_data_size}"
  puts "Expected Total Size     (bytes): #{edf.expected_edf_size}"

  puts "                        version: #{edf.version}"
  puts "   local_patient_identification: #{edf.local_patient_identification}"
  puts " local_recording_identification: #{edf.local_recording_identification}"
  puts "        start_date_of_recording: #{edf.start_date_of_recording}"
  puts "        start_time_of_recording: #{edf.start_time_of_recording}"
  puts "      number_of_bytes_in_header: #{edf.number_of_bytes_in_header}"
  puts "                       reserved: #{edf.reserved}"
  puts "         number_of_data_records: #{edf.number_of_data_records}"
  puts "      duration_of_a_data_record: #{edf.duration_of_a_data_record}"
  puts "              number_of_signals: #{edf.number_of_signals}"

  puts "\nSignal Information"
  edf.signals.each_with_index do |signal, index|
    puts "\n                       Position: #{index + 1}"
    puts "                          Label: #{signal.label}"
    puts "                Transducer Type: #{signal.transducer_type}"
    puts "             Physical Dimension: #{signal.physical_dimension}"
    puts "               Physical Minimum: #{signal.physical_minimum}"
    puts "               Physical Maximum: #{signal.physical_maximum}"
    puts "                Digital Minimum: #{signal.digital_minimum}"
    puts "                Digital Maximum: #{signal.digital_maximum}"
    puts "                   Prefiltering: #{signal.prefiltering}"
    puts "        Samples Per Data Record: #{signal.samples_per_data_record}"
    puts "                  Reserved Area: #{signal.reserved_area}"
  end
end

puts "\nCongrats! You have completed your second tutorial!".colorize(:green).on_white