Python3 TypeError: only size-1 arrays can be converted to Python scalars

問題:在用python3使用knn.train(trainData, responses)的時候,可能會產生錯誤:TypeError: only size-1 arrays can be converted to Python scalarspython newcomer = np.random.randint(0, 100, (1, 2)).astype(np.float32) plt.scat
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