Splitting Arrays - pythonbd

Splitting divides arrays into multiple sub-arrays either vertically (vsplit) or horizontally (hsplit).

Code Example:

import numpy as np

# Creating a 4x4 array for demonstration
arr = np.arange(16).reshape(4, 4)

# Splitting the array into 2 vertically
vsplit_arr = np.vsplit(arr, 2)

# Splitting the array into 2 horizontally
hsplit_arr = np.hsplit(arr, 2)

print("Original Array:\n", arr)
print("\nAfter Vertical Split:\nFirst Part:\n", vsplit_arr[0], "\nSecond Part:\n", vsplit_arr[1])
print("\nAfter Horizontal Split:\nFirst Part:\n", hsplit_arr[0], "\nSecond Part:\n", hsplit_arr[1])

Python

Output:

Original Array:
 [[ 0  1  2  3]
 [ 4  5  6  7]
 [ 8  9 10 11]
 [12 13 14 15]]

After Vertical Split:
First Part:
 [[0 1 2 3]
 [4 5 6 7]]
Second Part:
 [[ 8  9 10 11]
 [12 13 14 15]]

After Horizontal Split:
First Part:
 [[ 0  1]
 [ 4  5]
 [ 8  9]
 [12 13]]
Second Part:
 [[ 2  3]
 [ 6  7]
 [10 11]
 [14 15]]

Python

Explanation:

np.vsplit(arr, 2) splits the array arr into two vertically, creating two sub-arrays each with half the rows of the original.
np.hsplit(arr, 2) splits the array arr into two horizontally, each sub-array containing half the columns of the original.