code: def test_pdf_ordered(self):
      # Test for only ordered data
      dens = nparam.KDEMultivariate(
          data=[self.oecd], var_type="o", bw="cv_ls"
      )
      sm_result = np.squeeze(dens.pdf()[0:5])
      R_result = [0.7236395, 0.7236395, 0.2763605, 0.2763605, 0.7236395]
      # lower tol here. only 2nd decimal
      npt.assert_allclose(sm_result, R_result, atol=1e-1)
  
imports: import numpy
  import numpy.testing
  import pytest
  from numpy.testing import assert_allclose, assert_equal
  import statsmodels.api
label_desc: Use image node_id 5 for calling the TestKDEMultivariate obj's underlying member method code with example usage: obj.test_pdf_ordered() without return types