fix issue of contamination

CHANGES.txt

@@ -180,4 +180,5 @@ v<1.0.9>, <03/19/2023> -- Hot fix for errors in ECOD and COPOD due to the issue
 v<1.1.0>, <06/19/2023> -- Further integration of PyThresh.
 v<1.1.1>, <07/03/2023> -- Bump up sklearn requirement and some hot fixes.
 v<1.1.1>, <10/24/2023> -- Add deep isolation forest (#506).
-v<1.1.2>, <11/17/2023> -- Massive documentation optimization.
+v<1.1.2>, <11/17/2023> -- Massive documentation optimization.
+v<1.1.2>, <11/17/2023> -- Fix the issue of contamination.

pyod/models/lunar.py

@@ -154,8 +154,8 @@ class LUNAR(BaseDetector):
 
     def __init__(self, model_type="WEIGHT", n_neighbours=5, negative_sampling="MIXED",
                  val_size=0.1, scaler=MinMaxScaler(), epsilon=0.1, proportion=1.0,
-                 n_epochs=200, lr=0.001, wd=0.1, verbose=0):
-        super(LUNAR, self).__init__()
+                 n_epochs=200, lr=0.001, wd=0.1, verbose=0, contamination=0.1):
+        super(LUNAR, self).__init__(contamination=contamination)
 
         self.model_type = model_type
         self.n_neighbours = n_neighbours

pyod/models/mad.py

@@ -55,10 +55,8 @@ class MAD(BaseDetector):
         ``threshold_`` on ``decision_scores_``.
     """
 
-    def __init__(self, threshold=3.5):
-        # contamination is unneeded since threshold must be
-        # decided manually by the user
-        super(MAD, self).__init__()
+    def __init__(self, threshold=3.5, contamination=0.1):
+        super(MAD, self).__init__(contamination=contamination)
         if not isinstance(threshold, (float, int)):
             raise TypeError(
                 'threshold must be a number. Got {}'.format(type(threshold)))