np.max
與np.amax
是同名函數
https://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.max.html
np.amax
numpy.amax(a, axis=None, out=None, keepdims=<no value>, initial=<no value>)[source]
返回數組a
的最大值。
常用參數axis
,即沿着指定軸
例
import numpy as np
a=np.array([[0, 1, 3, 4, 2],
[5, 6, 7, 1, 0]])
print(np.amax(a, axis=0))
print(np.amax(a, axis=1))
[5 6 7 4 2]
[4 7]