首先输入一个矩阵:>>>b=[[1,2,3,4,5,6],[2,2,3,4,5,6],[3,2,3,4,5,6],[4,2,3,4,5,6],[5,2,3,4,5,6]]>>
首先输入一个矩阵:
>>> b=[[1,2,3,4,5,6],[2,2,3,4,5,6],[3,2,3,4,5,6],[4,2,3,4,5,6],[5,2,3,4,5,6]]
>>> b=np.array(b)
>>> b
array([[1, 2, 3, 4, 5, 6],
[2, 2, 3, 4, 5, 6],
[3, 2, 3, 4, 5, 6],
[4, 2, 3, 4, 5, 6],
[5, 2, 3, 4, 5, 6]])
目标:取上述矩阵的2,3,4,5,6列
>>> e=b[:,1:len(b[0])]
>>> e
array([[2, 3, 4, 5, 6],
[2, 3, 4, 5, 6],
[2, 3, 4, 5, 6],
[2, 3, 4, 5, 6],
[2, 3, 4, 5, 6]])
以上这篇Python 实现取矩阵的部分列,保存为一个新的矩阵方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持脚本之家。
Python 矩阵