code: def test_missing(self):
      data, meta = loadarff(missing)
      for i in ["yop", "yap"]:
          assert_array_almost_equal(data[i], expect_missing[i])
  
imports: from __future__ import division, print_function, absolute_import
  import datetime
  import os
  import sys
  from os.path import join
  import numpy
  from numpy.testing import assert_array_almost_equal, assert_array_equal, assert_equal, assert_
  import pytest
  from pytest import raises
  from scipy.io.arff.arffread import loadarff
  from scipy.io.arff.arffread import read_header, parse_type, ParseArffError
label_desc: Use image node_id 1 for calling the TestMissingData obj's underlying member method code with example usage: obj.test_missing() without return types