Instantly share code, notes, and snippets.

Embed
What would you like to do?
Read EDF Header and Signal Header
# 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
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment