时间：2021-05-16 09:36:57 | 栏目：Python代码 | 点击：次
python中科学计算包numpy中矩阵的合并，需要用到如下两个函数：
列合并：np.column_stack() ，其中函数参数为一个tuple
行合并：np.row_stack()，其中函数参数为一个tuple
>>> import numpy as np >>> a = np.arange(8).reshape(4, -1) >>> print(a) [[0 1] [2 3] [4 5] [6 7]] >>> b = np.arange(8, 16).reshape(4, -1) >>> print(b) [[ 8 9] [10 11] [12 13] [14 15]] >>> c = np.column_stack((a, b)) >>> print(c) [[ 0 1 8 9] [ 2 3 10 11] [ 4 5 12 13] [ 6 7 14 15]] >>> d = np.row_stack((a, b)) >>> print(d) [[ 0 1] [ 2 3] [ 4 5] [ 6 7] [ 8 9] [10 11] [12 13] [14 15]]