code: def test_contrast2(self):
      zero = np.zeros((40,))
      term = np.column_stack((zero, self.X[:, 2]))
      c = Contrast(term, self.X)
      test_contrast = [0] * 2 + [1] + [0] * 7
      assert_almost_equal(test_contrast, c.contrast_matrix)
  
file_path: statsmodels/statsmodels/stats/tests/test_contrast.py
imports: import numpy
  import numpy.random
  from numpy.testing import assert_almost_equal, assert_equal
  from statsmodels.stats.contrast import Contrast
  import statsmodels.stats.contrast
label_desc: Use image node_id 3 for calling the TestContrast obj's underlying member method code with example usage: obj.test_contrast2() without return types