将向量转换成MxN矩阵

Question

如何将向量转换为MxN矩阵？ 我已经尝试过重塑，但无法弄清楚。

a vector A 
A = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
b = 3
C = 5

New matrix 
M = [[1,2,3,4,5],
     [6,7,8,9,10],
     [11,12,13,14,15]]

Answer 1

尝试使用numpy：

import numpy as np 

A = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
b = 3
C = 5

x = np.reshape(A, (b, C))

print(x)

Answer 2

A = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
C = 5

M = [A[i:i + C] for i in range(0, len(A), C)]
print (M)

输出：

[[1, 2, 3, 4, 5], [6, 7, 8, 9, 10], [11, 12, 13, 14, 15]]