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[英]Generate new matrix from A containing the average value of A rows for each column if B[i, j] == 1 where B is an adjacency matrix
[英]Creation of new matrix from A containing the average value of A rows for each column if B[i, j] == 1 where B is an adjacency matrix
Suppose we have a matrix
A = 1 2 3 4
15 20 7 10
0 5 18 12
And an adjacency matrix
B = 1 0 1
0 0 1
1 1 1
如果 B[i,j] == 1,我們如何獲得一個包含 A 行每列平均值的新矩陣
Expected output matrix
C = 0.5 3.5 10.5 8
7.5 12.5 12.5 11
5.33 9 9.33 8.66
為了找到每個 i 的鄰域,我實現了以下代碼:
for i in range(A.shape[0]):
for j in range(A.shape[0]):
if (B[i,j] == 1):
print(j)```
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