成功解決sklearn.exceptions.NotFittedError: This StandardScaler instance is not fitted yet. Call ‘fit‘ wi

解決問題

sklearn.exceptions.NotFittedError: This StandardScaler instance is not fitted yet. Call 'fit' with appropriate arguments before using this estimator.

解決思路

sklearn異常未裝配錯誤:此StandardScaler執行個體尚未裝配。在使用這個估計器之前，使用适當的參數調用“fit”。

解決方法

ss_X = StandardScaler()  

ss_y = StandardScaler()

X_train = ss_X.fit_transform(X_train)            

X_test  = ss_X.transform(X_test)