'Transpose a dataset.'

def test_transpose(self):

    transposed_founders = self.founders.transpose()
    first_row = transposed_founders[0]
    second_row = transposed_founders[1]
    self.assertEqual(transposed_founders.headers, ['first_name', 'John', 'George', 'Thomas'])
    self.assertEqual(first_row, ('last_name', 'Adams', 'Washington', 'Jefferson'))
    self.assertEqual(second_row, ('gpa', 90, 67, 50))
