<目次>
(1) Kerasで「AttributeError: ‘Sequential’ object has no attribute ‘XXX’」エラー原因・対処(+predict_classes関数やpredict_proba関数の解説)
(1-1) 事象
(1-2) 原因
(1-3) 対策
(1-4) 参考①:predict_classes()関数について
(1-5) 参考②:predict_proba()関数について
(1-6) 参考③:対処の背景
(1) Kerasで「AttributeError: ‘Sequential’ object has no attribute ‘XXX’」エラー原因・対処(+predict_classes関数やpredict_proba関数の解説)
(1-1) 事象
- Traceback (most recent call last):
- File "c:\\ xxxxxx\\xxxxx.py", line NN, in XXXXX
- classes = model.predict_classes(X,batch_size=1)
- AttributeError: 'Sequential' object has no attribute 'predict_classes'
- Traceback (most recent call last):
- File "c:\\ xxxxxx\\xxxxx.py", line NN, in XXXXX
- prob = model.predict_proba(X,batch_size=1)
- AttributeError: 'Sequential' object has no attribute 'predict_proba'


(1-2) 原因
(1-3) 対策
●「predict_classes」の対策
- classes = model.predict_classes(X,batch_size=1)
- classes = np.argmax(model.predict(X),axis=1)
- classes = (model.predict(X) > 0.5).astype("int32")
●「predict_proba」の対策
- prob = model.predict_proba(X,batch_size=1)
- prob = model.predict(X,batch_size=1)

(1-4) 参考①:predict_classes()関数について
- t = np.array([[0],[1],[1],[1]])
- classified: [[False]
- [ True]
- [ True]
- [ True]]
- probability: [[0.5082121]
- [0.7830747]
- [0.8921545]
- [0.9665527]]

- classified: [[True]
- [ True]
- [ True]
- [ True]]
- probability: [[0. 45884573]
- [0.7830747]
- [0.8921545]
- [0.9665527]]

(1-5) 参考②:predict_proba()関数について
- t = np.array([[0],[1],[1],[1]])
(1-6) 参考③:対処の背景
- C:\\XXXXXXX\\lib\\site-packages\\tensorflow\\python\\keras\\engine\\sequential.py:455:
- UserWarning: model.predict_classes() is deprecated and will be removed after 2021-01->01.
- Please use instead:
- * np.argmax(model.predict(x), axis=-1), if your >model does multi-class classification (e.g. if it uses a softmax last->layer activation).
- * (model.predict(x) > 0.5).astype("int32"), if your >model does binary classification (e.g. if it uses a sigmoid last-layer >activation). warnings.warn('model.predict_classes() is deprecated and '