numpy.delete删除列的方法

>>> dataset=[[1,2,3],[2,3,4],[4,5,6]]

>>> import numpy as np

>>> dataset = np.delete(dataset, -1, axis=1)

>>> dataset

array([[1, 2],

  [2, 3],

  [4, 5]])

arr = np.array([[1,2,3,4], [5,6,7,8], [9,10,11,12]])

np.delete(arr, [1,2], axis=1)

array([[ 1, 4],

  [ 5, 8],

  [ 9, 12]])