error 1：

 # plt.scatter(X[0,:],X[1,:],c=np.squeeze(Y),s=40,cmap=plt.cm.Spectral)
    plt.scatter(X[0, :], X[1, :], c=Y, s=40, cmap=plt.cm.Spectral)

ans：第二行應換為第一行

c of shape (1, 300) not acceptable as a color sequence for x with size 300, y with size 300

遇到類似型別不匹配的問題,也是這樣得解法,只不過當你更改後,記得儲存哦,特別在jupyter notebook下編譯的時候記得點下kernel下面的restart 就是重啟核心

error 2：

 DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  y = column_or_1d(y, warn=True)

y=Y.ravel() 應該新增上這句話