python | num py matrix . swap axes()
原文:https://www.geeksforgeeks.org/python-numpy-matrix-swapaxes/
借助**matrix.swapaxes()**方法，我们可以用同样的方法交换矩阵的轴。
语法:
matrix.swapaxes()返回:返回有互换轴的矩阵
示例#1 :
在本例中，我们可以使用matrix.swapaxes()方法交换矩阵的轴。
# import the important module in python
import numpy as np
# make matrix with numpy
gfg = np.matrix('[4, 1; 12, 3]')
# applying matrix.swapaxes() method
geek = gfg.swapaxes(0, 1)
print(geek)
Output:
[[ 4 12]
[ 1 3]]
例 2 :
# import the important module in python
import numpy as np
# make matrix with numpy
gfg = np.matrix('[4, 1, 9; 12, 3, 1; 4, 5, 6]')
# applying matrix.swapaxes() method
geek = gfg.swapaxes(1, 1)
print(geek)
Output:
[[ 4 1 9]
[12 3 1]
[ 4 5 6]]
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