numpy之numpy.amax

numpy.amax(a, axis=None, out=None, keepdims=<no value>, initial=<no value>, where=<no value>)

获取数据a的坐标轴方向的最大值。

举例：

import numpy as np
a = np.arange(8).reshape((2, 2,2))
print(a)
b=np.amax(a)
print('b=\n',b)
c=np.amax(a, axis=2)
print('c1=\n',c)

c=np.amax(a, axis=1)
print('c2=\n',c)

c=np.amax(a, axis=0)
print('c3=\n',c)

[[[0 1]
  [2 3]]

 [[4 5]
  [6 7]]]
b=
 7
c1=
 [[1 3]
 [5 7]]
c2=
 [[2 3]
 [6 7]]
c3=
 [[4 5]
 [6 7]]