3
當我執行下面的代碼,我收到了備用矩陣:添加列到稀疏矩陣
import numpy as np
from scipy.sparse import csr_matrix
row = np.array([0, 0, 1, 2, 2, 2])
col = np.array([0, 2, 2, 0, 1, 2])
data = np.array([1, 2, 3, 4, 5, 6])
sp = csr_matrix((data, (row, col)), shape=(3, 3))
print(sp)
(0, 0) 1
(0, 2) 2
(1, 2) 3
(2, 0) 4
(2, 1) 5
(2, 2) 6
我想另一列添加到該稀疏矩陣所以輸出:
(0, 0) 1
(0, 2) 2
(0, 3) 7
(1, 2) 3
(1, 3) 7
(2, 0) 4
(2, 1) 5
(2, 2) 6
(2, 3) 6
基本上我想添加另一個值爲7,7,7的列。
看看[這裏](http://stackoverflow.com/questions/19710602/concatenate-sparse-matrices-in-python-using-scipy-numpy) –