# numpy.split

This function divides the array into subarrays along a specified axis. The function takes three parameters.

```numpy.split(ary, indices_or_sections, axis)
```

Where,

Sr.No. Parameter & Description
1

ary

Input array to be split

2

indices_or_sections

Can be an integer, indicating the number of equal sized subarrays to be created from the input array. If this parameter is a 1-D array, the entries indicate the points at which a new subarray is to be created.

3

axis

Default is 0

## Example

```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
```

Its output is as follows −

```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])]
```
numpy_array_manipulation.htm