此函数沿指定的轴将数组划分为子数组。该函数具有三个参数。
numpy.split(ary, indices_or_sections, axis)
| Sr.No. | Parameter & 描述 |
|---|---|
| 1 |
ary 要拆分的输入数组 |
| 2 |
indices_or_sections 可以是整数，指示要从输入数组创建的大小相等的子数组的数量。 |
| 3 |
axis 默认为0 |
import numpy as np a = np.arange(9) print 'First array:' print a print '\n' print 'Split the array in 3 equal-sized subarrays:' b = np.split(a,3) print b print '\n' print 'Split the array at positions indicated in 1-D array:' b = np.split(a,[4,7]) print b
其输出如下-
First array: [0 1 2 3 4 5 6 7 8] Split the array in 3 equal-sized subarrays: [array([0, 1, 2]), array([3, 4, 5]), array([6, 7, 8])] Split the array at positions indicated in 1-D array: [array([0, 1, 2, 3]), array([4, 5, 6]), array([7, 8])]
