「axis 1 is out of bounds for array of dimension

以下のプログラムで、「axis 1 is out of bounds for array of dimension 1」というエラーが出ます。恐らくaxisの指定が誤っているのかと思いますが、どのよう

以下のプログラムで、

「axis 1 is out of bounds for array of dimension 1」というエラーが出ます。

恐らくaxisの指定が誤っているのかと思いますが、どのように修正すればよいのでしょうか？

お詳しい方、ご指導よろしくお願いいたします。

#　未知データの読み込み
df1 = pd.read_excel('test_base_2_未知.xlsx',sheetname='未知')## 未知データのエクセル読み込み
x_test_keras_1 = np.array(df1)

## データを標準化
x_test_keras_1_std = stdsc.fit_transform(x_test_keras_1)

#　未知データをロードした学習済モデルで予測
y_test_keras_1_std =grid.predict(x_test_keras_1_std)

#　予測値をインデックス（0,1）に変換
Survived = np.argmax(y_test_keras_1_std, axis=1)
print(Survived)
---------------------------------------------------------------------------
AxisError                                 Traceback (most recent call last)
<ipython-input-56-cd06f22ac336> in <module>
     12 
     13 #　予測値をインデックス（0,1）に変換
---> 14 Survived = np.argmax(y_test_keras_1_std, axis=1)
     15 print(Survived)

~\Anaconda3\lib\site-packages\numpy\core\fromnumeric.py in argmax(a, axis, out)
   1101 
   1102     """
-> 1103     return _wrapfunc(a, 'argmax', axis=axis, out=out)
   1104 
   1105 

~\Anaconda3\lib\site-packages\numpy\core\fromnumeric.py in _wrapfunc(obj, method, *args, **kwds)
     54 def _wrapfunc(obj, method, *args, **kwds):
     55     try:
---> 56         return getattr(obj, method)(*args, **kwds)
     57 
     58     ## An AttributeError occurs if the object does not have

AxisError: axis 1 is out of bounds for array of dimension 1

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