class_docstr: Test DataVisualizer base class
class_docstr_tok: ["Test","DataVisualizer","base","class"]
docstr: Ensure classes are ignored in continuous case
code: def test_classes_continuous(self):
      """
      Ensure classes are ignored in continuous case
      """
      X, y = self.continuous
      classes = ["a", "b", "c", "d", "e"]
      oz = DataVisualizer(
          classes=classes, target_type="continuous"
      ).fit(X, y)
  
      assert not hasattr(oz, "classes_")
  
imports: import pytest
  import numpy
  import numpy.testing
  from tests.fixtures import Dataset
  from yellowbrick.base import Visualizer
  from yellowbrick.features.base import *
  from sklearn.base import BaseEstimator, TransformerMixin
  from sklearn.datasets import make_classification, make_regression
  from unittest.mock import Mock
label_desc: Use image node_id 10 for calling the TestDataVisualizer obj's underlying member method code with example usage: obj.test_classes_continuous() without return types