numpy.ndarray 对特定行或列取值
import numpy as np
b = [[1,2,0],
[4,5,0],
[7,8,1],
[4,0,1],
[7,11,1]
]
a=np.array([b]).reshape((5,3))
print(a)
c=[1,3,4]
# print(a[c])
d=np.nonzero(a[:, 2] == 0)
print(d)
print(a[d])
import numpy as np
b = [[1,2,0],
[4,5,0],
[7,8,1],
[4,0,1],
[7,11,1]
]
a=np.array([b]).reshape((5,3))
print(a)
c=[1,3,4]
# print(a[c])
d=np.nonzero(a[:, 2] == 0)
print(d)
print(a[d])