設置對角線很簡單:
import numpy as np
a = np.random.randint(0,10,(11,10)) # I notice your matrix is not square!
In [31] a
Out[31]:
array([[0, 7, 6, 0, 8, 6, 4, 1, 0, 9],
[4, 7, 6, 0, 3, 4, 6, 6, 9, 2],
[2, 3, 9, 6, 2, 3, 0, 0, 2, 7],
[5, 9, 6, 8, 3, 3, 0, 8, 3, 5],
[0, 0, 7, 0, 4, 8, 2, 4, 8, 7],
[3, 3, 1, 6, 6, 4, 9, 5, 1, 2],
[8, 1, 8, 4, 9, 6, 6, 4, 2, 7],
[0, 8, 0, 1, 1, 9, 9, 7, 7, 1],
[9, 2, 6, 2, 8, 9, 4, 8, 0, 8],
[4, 4, 2, 7, 7, 4, 4, 7, 8, 6],
[5, 3, 5, 8, 1, 7, 3, 5, 5, 7]])
np.fill_diagonal(a,a[:,0])
In [33] a
Out[33]:
array([[0, 7, 6, 0, 8, 6, 4, 1, 0, 9],
[4, 4, 6, 0, 3, 4, 6, 6, 9, 2],
[2, 3, 2, 6, 2, 3, 0, 0, 2, 7],
[5, 9, 6, 5, 3, 3, 0, 8, 3, 5],
[0, 0, 7, 0, 0, 8, 2, 4, 8, 7],
[3, 3, 1, 6, 6, 3, 9, 5, 1, 2],
[8, 1, 8, 4, 9, 6, 8, 4, 2, 7],
[0, 8, 0, 1, 1, 9, 9, 0, 7, 1],
[9, 2, 6, 2, 8, 9, 4, 8, 9, 8],
[4, 4, 2, 7, 7, 4, 4, 7, 8, 4],
[5, 3, 5, 8, 1, 7, 3, 5, 5, 7]])
但是,如果你想做一個轉化/旋轉,那麼你必須確定你想怎麼這樣的事情發生(我不知道你是如何工作的是在非方形矩陣上)。
舉例說明預期的輸入以及期望的輸出以及迄今爲止解決該問題的代碼。 – shuttle87
我試過用這樣的代碼使用np.argmin函數:b = a [:,np.argmin(a,axis = 1)]。 –
你在找什麼樣的確切轉換?請嘗試用精確的數學術語解釋。 – shuttle87