矩阵增加行
np.row_stack() 与 np.column_stack()
import numpy as np
a = np.array([[4, 4,], [5, 5]])
c = np.row_stack((a, [8,9]))
d = np.column_stack((a, [8,9]))
import numpy as np
a = np.array([[4, 4,], [5, 5]])
c = np.row_stack((a, [8,9]))
d = np.column_stack((a, [8,9]))