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Can anyone explain me why I get the following error:

ValueError: non-broadcastable output operand with shape (1,1) 
doesn't match the broadcast shape (1,2)

while executing:

    X = np.array([[i, j] for i, j in zip(dati['a'], dati['b'])], 
        dtype = float) #np.shape(X) is (23, 2)

    scaler = MinMaxScaler(feature_range=(0, 1))
    X = scaler.fit_transform(X) #np.shape(X) is (23, 2)

    X = np.reshape(X, (X.shape[0], X.shape[1], 1)) #np.shape(X) is (23, 2, 1)

    X = f(X) #np.shape(X) is (23, 1)

    X = scaler.inverse_transform(X)

    p = np.array([dati[['a','b']].iloc[-1]], dtype = float) #np.shape(X) is (1, 2)

    scaler = MinMaxScaler(feature_range=(0, 1))
    p = scaler.fit_transform(p) #np.shape(X) is (1, 2)

    p = np.reshape(p, (p.shape[0], p.shape[1], 1)) #np.shape(X) is (1, 2, 1)

    p = f(p) #np.shape(p) is (1, 1)

    p = scaler.inverse_transform(p) #Here the error

I really do not understand why applying the inverse_transform on the result of f(X) which has different dimensions than X everything is fine and while doing the same on f(p) which has different dimensions than p I get the error.

Nipper
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