如何從python中的int64創建標量索引？

Question

我有這個代碼：

valueXs = [7, 9, 10, 11, 8, 5, 2, 9, 18, 17, 15, 7]
diff = np.diff(np.sign(np.diff(valueXs)))
maxi = np.where(diff < 0)[0]+1

但是當我嘗試： valueXs[maxi]我得到錯誤：

TypeError: only integer scalar arrays can be converted to a scalar index

Answer 1

valueXs = np.array([7, 9, 10, 11, 8, 5, 2, 9, 18, 17, 15, 7])
diff = np.diff(np.sign(np.diff(valueXs)))
maxi = np.where(diff < 0)[0]+1
valueXs[maxi]

將您的 valueXs 轉換為 np.array 以允許數組索引